CVE-2026-64970

MEDIUMPre-NVD 5.15.1
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-63371 (ENISA EUVD) · GHSA-mpgc-c9hq-x24g (GitHub Security Advisories)Source: ENISA EUVD

5.1EG
EchelonGraph verdictMonitorNo 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).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.1Exploit: None knownExposed services: Not assessed

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

ATutor is vulnerable to Stored Cross Site Scripting in registration functionality.  An attacker can register a new account and enter a JavaScript payload in the phone field during registration. When any authenticated user visits the attacker's public profile, the profile template echoes the phone value without output encoding and the browser executes the payload leading to the theft of user's session cookie.

Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.

CVSS
5.1
EG Score
5.1MEDIUMmedium confidence
EG Risk
23
EG Risk 23/100

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)
Severity51% × 45%
Impact severity (EG Severity): CVSS 5.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
0.5%
EPSS %ILE
40th
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 (5.1): severity, escalated by confirmed exploitation. This CVE's 5.1 is its impact severity (EG Severity), not escalated.

EG Severity
5.1 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.5% 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 every mission impact level.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 every mission impact level.

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 none (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

August 20, 2026

Last Modified

October 26, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
No fix on record yet.
Web page

ATutor Home

https://atutor.github.io/
Web page

Vulnerabilities in ATutor software | CERT Polska

https://cert.pl/en/posts/2026/08/CVE-2026-64960

Vendor Advisories for CVE-2026-64970(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 / 34× 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 → 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 176 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 76 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% · 40th percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  6. 2026-11-07 19:25 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g · GitHub severity MODERATE
  7. 2026-11-07 19:25 UTCEchelonGraph re-scored
  8. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  10. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  13. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  15. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  17. 2026-10-29 16:41 UTCEchelonGraph re-scored
  18. 2026-10-29 16:41 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  19. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-10-26 10:27 UTCEchelonGraph re-scored
  24. 2026-10-26 10:27 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  25. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
Show 75 more
  1. 2026-10-25 14:12 UTCEchelonGraph re-scored
  2. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  4. 2026-10-22 19:41 UTCEchelonGraph re-scored
  5. 2026-10-22 19:41 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  6. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-18 03:21 UTCEchelonGraph re-scored
  12. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  17. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-10-12 15:47 UTCEchelonGraph re-scored
  19. 2026-10-11 19:32 UTCEchelonGraph re-scored
  20. 2026-10-11 16:47 UTCEchelonGraph re-scored
  21. 2026-10-11 14:08 UTCEchelonGraph re-scored
  22. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  25. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  26. 2026-10-08 05:36 UTCEchelonGraph re-scored
  27. 2026-10-08 05:36 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  28. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  29. 2026-10-07 04:34 UTCEchelonGraph re-scored
  30. 2026-10-07 04:34 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  31. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  32. 2026-10-06 03:30 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  33. 2026-10-06 03:30 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  34. 2026-10-06 03:29 UTCEchelonGraph re-scored
  35. 2026-10-06 03:29 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  36. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  37. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  38. 2026-10-04 21:17 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  39. 2026-10-03 16:48 UTCEchelonGraph re-scored
  40. 2026-10-03 16:48 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  41. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  42. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  43. 2026-10-02 10:27 UTCEchelonGraph re-scored
  44. 2026-10-02 10:27 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  45. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  46. 2026-10-01 09:25 UTCEchelonGraph re-scored
  47. 2026-10-01 09:25 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  48. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  49. 2026-09-30 08:21 UTCEchelonGraph re-scored
  50. 2026-09-30 08:21 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  51. 2026-09-29 05:24 UTCEchelonGraph re-scored
  52. 2026-09-29 05:24 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  53. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  54. 2026-09-28 04:22 UTCEchelonGraph re-scored
  55. 2026-09-28 04:22 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  56. 2026-09-27 03:20 UTCEchelonGraph re-scored
  57. 2026-09-27 03:20 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  58. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  59. 2026-09-25 00:43 UTCEchelonGraph re-scored
  60. 2026-09-25 00:43 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  61. 2026-09-23 20:48 UTCEchelonGraph re-scored
  62. 2026-09-23 20:48 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  63. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  64. 2026-09-22 19:46 UTCEchelonGraph re-scored
  65. 2026-09-22 19:46 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  66. 2026-09-21 17:59 UTCEchelonGraph re-scored
  67. 2026-09-21 17:59 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  68. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  69. 2026-09-20 16:57 UTCEchelonGraph re-scored
  70. 2026-09-20 16:57 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  71. 2026-09-19 15:39 UTCEchelonGraph re-scored
  72. 2026-09-19 15:38 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g
  73. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  74. 2026-09-18 14:36 UTCEchelonGraph re-scored
  75. 2026-09-18 14:36 UTCGHSA enrichmentGHSA-mpgc-c9hq-x24g

Frequently asked(5)

What is CVE-2026-64970?
CVE-2026-64970 is a medium-severity vulnerability; its CVE record was published on August 20, 2026. ATutor is vulnerable to Stored Cross Site Scripting in registration functionality. An attacker can register a new account and enter a JavaScript payload in the phone field during registration. When any authenticated user visits the attacker's public profile, the profile template echoes the phone…
When was the CVE record for CVE-2026-64970 published?
The CVE record for CVE-2026-64970 was published on August 20, 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 October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-64970 actively exploited?
CVE-2026-64970 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64970?
CVE-2026-64970 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-64970?
No fix for CVE-2026-64970 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 vendor advisories EchelonGraph has for CVE-2026-64970 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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