CVE-2026-86244

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

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

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-09-07. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-72191 (ENISA EUVD) · GHSA-h6hc-9p4p-wf6h (GitHub Security Advisories)Source: ENISA EUVD

4.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (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: 0.5%CVSS: 4.3Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

A security vulnerability has been detected in FastAdmin up to 1.2.0.20210401_beta. Affected is the function register/login of the file application/index/controller/User.php of the component User Controller. Such manipulation of the argument url leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. Upgrading to version 1.2.1.20210731_beta is able to address this issue. The name of the patch is b3d32e2bf3637488cfe2fc58a27a9d2475b2b51b. It is recommended to upgrade the affected component.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100

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)
Severity43% × 45%
Impact severity (EG Severity): CVSS 4.3 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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
41st
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 (4.3): severity, escalated by confirmed exploitation. This CVE's 4.3 is its impact severity (EG Severity), not escalated.

EG Severity
4.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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.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).

The CVE record names the fixed release. Apply it within your standard update timelines.

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.

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 7, 2026

Last Modified

September 28, 2026

Advisory Details (2)

Auto-updated Sep 7, 2026
Fix named in the CVE record. Sources: github_commit.
GitHub commit

commit b3d32e2bf363 (fastadminnet/fastadmin)

Fix landed in fastadminnet/fastadmin commit b3d32e2bf363 — awaiting tagged release

https://github.com/fastadminnet/fastadmin/commit/b3d32e2bf3637488cfe2fc58a27a9d2475b2b51b
Web page

FastAdmin Reflected XSS Vulnerability | Lhz's blog

https://lhzzz08.github.io/posts/cveapplication4/

Vendor Advisories for CVE-2026-86244(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 32× 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 146 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 46 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  2. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  3. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  4. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  10. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  14. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  15. 2026-10-29 23:55 UTCOSV refresh
  16. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  17. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  18. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-10-25 13:55 UTCEchelonGraph re-scored
  22. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-10-22 12:46 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-10-22 12:46 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  2. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  4. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  6. 2026-10-18 03:05 UTCEchelonGraph re-scored
  7. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  11. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-10-12 14:51 UTCEchelonGraph re-scored
  14. 2026-10-11 19:17 UTCEchelonGraph re-scored
  15. 2026-10-11 16:33 UTCEchelonGraph re-scored
  16. 2026-10-11 13:51 UTCEchelonGraph re-scored
  17. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-10-09 23:53 UTCEchelonGraph re-scored
  20. 2026-10-09 23:53 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  21. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-10-09 00:57 UTCEchelonGraph re-scored
  23. 2026-10-09 00:56 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  24. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  25. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  26. 2026-10-07 22:45 UTCEchelonGraph re-scored
  27. 2026-10-07 22:45 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  28. 2026-10-06 21:52 UTCEchelonGraph re-scored
  29. 2026-10-06 21:52 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  30. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  31. 2026-10-05 22:56 UTCEchelonGraph re-scored
  32. 2026-10-05 22:56 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  33. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  34. 2026-10-04 23:51 UTCEchelonGraph re-scored
  35. 2026-10-04 23:51 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  36. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  37. 2026-10-04 00:55 UTCEchelonGraph re-scored
  38. 2026-10-04 00:55 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  39. 2026-10-03 00:21 UTCEchelonGraph re-scored
  40. 2026-10-03 00:21 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  41. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  42. 2026-10-02 00:30 UTCEchelonGraph re-scored
  43. 2026-10-02 00:30 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  44. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  45. 2026-10-01 01:29 UTCEchelonGraph re-scored
  46. 2026-10-01 01:29 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  47. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  48. 2026-09-30 02:33 UTCEchelonGraph re-scored
  49. 2026-09-30 02:33 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  50. 2026-09-28 23:16 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  51. 2026-09-28 23:01 UTCEchelonGraph re-scored
  52. 2026-09-28 23:01 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  53. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  54. 2026-09-27 23:58 UTCEchelonGraph re-scored
  55. 2026-09-27 23:58 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  56. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  57. 2026-09-27 01:02 UTCEchelonGraph re-scored
  58. 2026-09-27 01:02 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  59. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  60. 2026-09-26 02:07 UTCEchelonGraph re-scored
  61. 2026-09-26 02:07 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  62. 2026-09-25 03:12 UTCEchelonGraph re-scored
  63. 2026-09-25 03:12 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  64. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  65. 2026-09-24 04:14 UTCEchelonGraph re-scored
  66. 2026-09-24 04:14 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  67. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  68. 2026-09-23 05:19 UTCEchelonGraph re-scored
  69. 2026-09-23 05:19 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  70. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  71. 2026-09-22 06:23 UTCEchelonGraph re-scored
  72. 2026-09-22 06:23 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3
  73. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  74. 2026-09-21 07:28 UTCEchelonGraph re-scored
  75. 2026-09-21 07:28 UTCGHSA enrichmentGHSA-h6hc-9p4p-wf6h · GitHub severity LOW · GitHub CVSS 4.3

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86244?
CVE-2026-86244 is a medium-severity vulnerability; its CVE record was published on September 7, 2026. A security vulnerability has been detected in FastAdmin up to 1.2.0.20210401_beta. Affected is the function register/login of the file application/index/controller/User.php of the component User Controller. Such manipulation of the argument url leads to cross site scripting. The attack may be…
When was the CVE record for CVE-2026-86244 published?
The CVE record for CVE-2026-86244 was published on September 7, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 28, 2026; the record at its source may have been updated since.
Is CVE-2026-86244 actively exploited?
CVE-2026-86244 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-86244?
CVE-2026-86244 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-86244?
The CVE record for CVE-2026-86244 names the fix: "Upgrading to version 1.2.1.20210731_beta is able to address this issue." The vendor advisories EchelonGraph has for CVE-2026-86244 are linked in the Vendor Advisories panel on this page.

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