CVE-2026-85177

MEDIUMPre-NVD 5.45.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.4 from GitHub Security Advisory (severity: MODERATE) published 2026-09-03. The CNA's CVSS baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Elevated

Also known asEUVD-2026-70481 (ENISA EUVD) · GHSA-c94f-pm78-6rh7 (GitHub Security Advisories)Source: ENISA EUVD

5.4EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.4Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (VulnCheck) lists CRMEB versions up to and including 6.0.0 as affected. No release containing a fix is confirmed on record.

CRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns including is_del, look, and uid to delete, mark read, or reassign victim notifications without authorization.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity54% × 45%
Impact severity (EG Severity): CVSS 5.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.4%
EPSS %ILE
32nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.4): severity, escalated by confirmed exploitation. This CVE's 5.4 is its impact severity (EG Severity), not escalated.

EG Severity
5.4 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-07). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 3, 2026

Last Modified

September 24, 2026

Advisory Details (4)

Auto-updated Sep 3, 2026
No fix on record yet.
Web page

CRMEB through 6.0.0 Unauthorized Message Modification via edit_message | Advisories | VulnCheck

https://www.vulncheck.com/advisories/crmeb-through-6.0.0-unauthorized-message-modification-via-edit-message
Web page

CRMEB/crmeb/app/api/controller/v1/user/MessageSystemController.php at v6.0.0 · crmeb/CRMEB · GitHub

https://github.com/crmeb/CRMEB/blob/v6.0.0/crmeb/app/api/controller/v1/user/MessageSystemController.php
Web page

GitHub - crmeb/CRMEB: 🔥CRMEB开源商城免费开源多语言商城系统,Tp6框架商城,系统可商用;包含小程序商城、H5商城、公众号商城、PC商城、App,支持分销、拼团、砍价、秒杀、优惠券、积分、会员等级、小程序直播、页面DIY,前后端分离,方便二开,更有详细使用文档、接口文档、数据字典、二开文档/视频教程,欢迎大家提出宝贵意见和建议 · GitHub

https://github.com/crmeb/CRMEB
Web page

Horizontal IDOR in edit_message lets any customer delete or modify other customers' inbox messages · Issue #120 · crmeb/CRMEB · GitHub

https://github.com/crmeb/CRMEB/issues/120

Vendor Advisories for CVE-2026-85177(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 139 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 39 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  3. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  4. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  5. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  6. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  7. 2026-11-07 19:15 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub severity MODERATE · GitHub CVSS 5.4
  8. 2026-11-07 19:15 UTCEchelonGraph re-scored
  9. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  12. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  13. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  18. 2026-10-30 00:25 UTCOSV refresh
  19. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  24. 2026-10-25 13:55 UTCEchelonGraph re-scored
  25. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
Show 75 more
  1. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-22 12:54 UTCEchelonGraph re-scored
  4. 2026-10-22 12:54 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  5. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  6. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  7. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  9. 2026-10-18 03:06 UTCEchelonGraph re-scored
  10. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  11. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  13. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  14. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  15. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  16. 2026-10-12 14:52 UTCEchelonGraph re-scored
  17. 2026-10-11 19:18 UTCEchelonGraph re-scored
  18. 2026-10-11 16:34 UTCEchelonGraph re-scored
  19. 2026-10-11 13:52 UTCEchelonGraph re-scored
  20. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  22. 2026-10-10 01:20 UTCEchelonGraph re-scored
  23. 2026-10-10 01:20 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  24. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  25. 2026-10-09 01:33 UTCEchelonGraph re-scored
  26. 2026-10-09 01:33 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  27. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  28. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  29. 2026-10-07 23:33 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  30. 2026-10-06 19:09 UTCEchelonGraph re-scored
  31. 2026-10-06 19:09 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  32. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  33. 2026-10-05 19:26 UTCEchelonGraph re-scored
  34. 2026-10-05 19:26 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  35. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  36. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  37. 2026-10-04 19:31 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  38. 2026-10-03 19:15 UTCEchelonGraph re-scored
  39. 2026-10-03 19:15 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  40. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  41. 2026-10-02 19:18 UTCEchelonGraph re-scored
  42. 2026-10-02 19:18 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  43. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  44. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  45. 2026-10-01 19:38 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  46. 2026-09-30 19:15 UTCEchelonGraph re-scored
  47. 2026-09-30 19:15 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  48. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  49. 2026-09-29 14:56 UTCEchelonGraph re-scored
  50. 2026-09-29 14:56 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  51. 2026-09-28 15:09 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  52. 2026-09-27 15:23 UTCEchelonGraph re-scored
  53. 2026-09-27 15:23 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  54. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  55. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  56. 2026-09-26 15:29 UTCEchelonGraph re-scored
  57. 2026-09-26 15:29 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  58. 2026-09-25 14:37 UTCEchelonGraph re-scored
  59. 2026-09-25 14:37 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  60. 2026-09-24 14:56 UTCEchelonGraph re-scored
  61. 2026-09-24 14:56 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  62. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  63. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  64. 2026-09-23 17:24 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  65. 2026-09-22 20:07 UTCEchelonGraph re-scored
  66. 2026-09-22 20:07 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  67. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  68. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  69. 2026-09-21 20:27 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  70. 2026-09-20 20:45 UTCEchelonGraph re-scored
  71. 2026-09-20 20:45 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  72. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  73. 2026-09-19 21:05 UTCEchelonGraph re-scored
  74. 2026-09-19 21:05 UTCGHSA enrichmentGHSA-c94f-pm78-6rh7 · GitHub CVSS 5.4
  75. 2026-09-18 21:24 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-85177?
CVE-2026-85177 is a medium-severity vulnerability; its CVE record was published on September 3, 2026. CRMEB through 6.0.0 fails to validate message ownership in the edit_message handler of MessageSystemController.php, allowing authenticated users to modify arbitrary system inbox messages. Attackers can update any message's columns including is_del, look, and uid to delete, mark read, or reassign…
When was CVE-2026-85177 made public?
CVE-2026-85177 was made public on July 5, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 3, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-85177 actively exploited?
CVE-2026-85177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-85177?
CVE-2026-85177 has a CVSS base score of 5.4 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-85177?
No fix for CVE-2026-85177 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists CRMEB versions up to and including 6.0.0 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-85177 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-85177

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