CVE-2026-72780

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Craft CMS before 5.10.5 fails to persist updated credential counters after WebAuthn assertion validation in the passkey login endpoint. Attackers can replay captured login request bodies containing requestOptions and response to create additional authenticated sessions for victim accounts.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
Patch available. Sources: github.
generic

Craft CMS before 5.10.5 WebAuthn Assertion Replay via login-with-passkey | Advisories | VulnCheck

https://www.vulncheck.com/advisories/craft-cms-before-webauthn-assertion-replay-via-login-with-passkey
github Patch Available

Passkey login accepts replayed WebAuthn assertions · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-wg23-69c2-gjc8

Vendor Advisories for CVE-2026-72780(1)

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
craftcms/cms5.0.0 ... 5.9.9 (177 versions)
  • 5.0.0-RC1 up to 5.10.5: fixed in 5.10.5
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 62× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 136 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 23:11 UTCGHSA enrichment
  3. 2026-10-03 21:26 UTCEG score recompute
  4. 2026-10-03 21:26 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 08:44 UTCEG score recompute
  7. 2026-10-02 08:44 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 22:19 UTCEG score recompute
  10. 2026-09-30 22:19 UTCGHSA enrichment
  11. 2026-09-28 13:52 UTCEPSS rescore
  12. 2026-09-28 12:49 UTCEG score recompute
  13. 2026-09-28 12:49 UTCGHSA enrichment
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-27 11:01 UTCEG score recompute
  16. 2026-09-27 11:01 UTCGHSA enrichment
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-25 03:56 UTCEG score recompute
  19. 2026-09-25 03:56 UTCGHSA enrichment
  20. 2026-09-23 17:54 UTCEPSS rescore
  21. 2026-09-23 14:26 UTCEG score recompute
  22. 2026-09-23 14:26 UTCGHSA enrichment
  23. 2026-09-22 12:42 UTCEG score recompute
  24. 2026-09-22 12:42 UTCGHSA enrichment
  25. 2026-09-21 21:09 UTCEPSS rescore
Show 75 more
  1. 2026-09-21 10:59 UTCEG score recompute
  2. 2026-09-21 10:59 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 05:47 UTCEG score recompute
  5. 2026-09-20 05:47 UTCGHSA enrichment
  6. 2026-09-19 04:04 UTCEG score recompute
  7. 2026-09-19 04:04 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 02:18 UTCEG score recompute
  10. 2026-09-18 02:18 UTCGHSA enrichment
  11. 2026-09-17 00:35 UTCEG score recompute
  12. 2026-09-17 00:35 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 17:00 UTCEG score recompute
  16. 2026-09-15 17:00 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-14 15:16 UTCEG score recompute
  19. 2026-09-14 15:16 UTCGHSA enrichment
  20. 2026-09-13 13:33 UTCEG score recompute
  21. 2026-09-13 13:33 UTCGHSA enrichment
  22. 2026-09-12 15:02 UTCEPSS rescore
  23. 2026-09-12 11:50 UTCEG score recompute
  24. 2026-09-12 11:50 UTCGHSA enrichment
  25. 2026-09-11 14:53 UTCEPSS rescore
  26. 2026-09-11 09:10 UTCEG score recompute
  27. 2026-09-11 09:10 UTCGHSA enrichment
  28. 2026-09-10 09:35 UTCEPSS rescore
  29. 2026-09-10 07:27 UTCGHSA enrichment
  30. 2026-09-09 05:43 UTCEG score recompute
  31. 2026-09-09 05:43 UTCGHSA enrichment
  32. 2026-09-08 22:01 UTCEPSS rescore
  33. 2026-09-07 17:03 UTCEG score recompute
  34. 2026-09-07 17:03 UTCGHSA enrichment
  35. 2026-09-06 13:48 UTCEPSS rescore
  36. 2026-09-06 11:50 UTCEG score recompute
  37. 2026-09-06 11:50 UTCGHSA enrichment
  38. 2026-09-05 10:08 UTCEG score recompute
  39. 2026-09-05 10:08 UTCGHSA enrichment
  40. 2026-09-04 08:19 UTCEG score recompute
  41. 2026-09-04 08:19 UTCGHSA enrichment
  42. 2026-09-04 05:07 UTCEPSS rescore
  43. 2026-09-03 04:38 UTCEG score recompute
  44. 2026-09-03 04:38 UTCGHSA enrichment
  45. 2026-09-02 14:12 UTCEPSS rescore
  46. 2026-09-02 02:23 UTCEG score recompute
  47. 2026-09-02 02:23 UTCGHSA enrichment
  48. 2026-09-01 13:54 UTCEPSS rescore
  49. 2026-09-01 04:40 UTCEPSS rescore
  50. 2026-09-01 04:40 UTCEPSS rescore
  51. 2026-09-01 00:26 UTCGHSA enrichment
  52. 2026-08-30 22:34 UTCEG score recompute
  53. 2026-08-30 22:34 UTCGHSA enrichment
  54. 2026-08-30 19:18 UTCEPSS rescore
  55. 2026-08-30 19:17 UTCEPSS rescore
  56. 2026-08-29 20:51 UTCEG score recompute
  57. 2026-08-29 20:51 UTCGHSA enrichment
  58. 2026-08-28 21:42 UTCEPSS rescore
  59. 2026-08-28 18:55 UTCGHSA enrichment
  60. 2026-08-27 20:40 UTCEG score recompute
  61. 2026-08-27 20:40 UTCGHSA enrichment
  62. 2026-08-27 14:25 UTCEPSS rescore
  63. 2026-08-26 18:57 UTCEG score recompute
  64. 2026-08-26 18:57 UTCGHSA enrichment
  65. 2026-08-26 14:47 UTCEPSS rescore
  66. 2026-08-25 17:14 UTCEG score recompute
  67. 2026-08-25 17:14 UTCGHSA enrichment
  68. 2026-08-25 13:49 UTCEPSS rescore
  69. 2026-08-24 15:21 UTCEG score recompute
  70. 2026-08-24 15:21 UTCGHSA enrichment
  71. 2026-08-23 13:39 UTCEG score recompute
  72. 2026-08-23 13:39 UTCGHSA enrichment
  73. 2026-08-23 00:19 UTCEPSS rescore
  74. 2026-08-22 11:56 UTCEG score recompute
  75. 2026-08-22 11:56 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-72780?
CVE-2026-72780 is a medium vulnerability published on August 11, 2026. Craft CMS before 5.10.5 fails to persist updated credential counters after WebAuthn assertion validation in the passkey login endpoint. Attackers can replay captured login request bodies containing requestOptions and response to create additional authenticated sessions for victim accounts.
When was CVE-2026-72780 disclosed?
CVE-2026-72780 was first published on August 11, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72780 actively exploited?
CVE-2026-72780 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72780?
CVE-2026-72780 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72780?
A fix for CVE-2026-72780 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72780 are linked in the Vendor Advisories panel on this page.

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