CVE-2026-72780

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH 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%CVSS: 6.5Exploit: None knownExposed: 0

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

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
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 11, 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 rangeFixed inDependents
craftcms/cms5.0.0 ... 5.9.9 (177 versions)5.10.5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 33× 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.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 08:29 UTCEG score recompute
  3. 2026-08-20 08:29 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 06:46 UTCEG score recompute
  6. 2026-08-19 06:46 UTCGHSA enrichment
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 04:55 UTCEG score recompute
  10. 2026-08-18 04:55 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-17 03:13 UTCEG score recompute
  13. 2026-08-17 03:13 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 02:15 UTCEPSS rescore
  17. 2026-08-16 01:30 UTCEG score recompute
  18. 2026-08-16 01:30 UTCGHSA enrichment
  19. 2026-08-15 01:31 UTCEPSS rescore
  20. 2026-08-14 23:47 UTCGHSA enrichment
  21. 2026-08-13 22:04 UTCEG score recompute
  22. 2026-08-13 22:04 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-12 20:22 UTCEG score recompute
  25. 2026-08-12 20:22 UTCGHSA enrichment
Show 8 more
  1. 2026-08-12 13:51 UTCEPSS rescore
  2. 2026-08-11 18:39 UTCEG score recompute
  3. 2026-08-11 18:39 UTCGHSA enrichment
  4. 2026-08-11 18:17 UTCEG score recompute
  5. 2026-08-11 18:16 UTCGHSA enrichment
  6. 2026-08-11 13:25 UTCEG score recompute
  7. 2026-08-11 12:37 UTCEG score recompute
  8. 2026-08-11 12:37 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 11, 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% probability of exploitation in the next 30 days, which ranks it in the top 86.3% of all scored CVEs.
What is the CVSS score of CVE-2026-72780?
CVE-2026-72780 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-72780?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72780, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-72780

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