Vulnerability in Craftcms Cms
CVE-2026-72780
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Craftcms Cms — versions 5.0.0-RC1, 5.10.5
Weakness classification (CWE)
References
- github.com/craftcms/cms/security/advisories/GHSA-wg23-69c2-gjc8 (vendor-advisory)
- www.vulncheck.com/advisories/craft-cms-before-webauthn-assertion-replay-via-log… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-72780?
- CVE-2026-72780 is a medium-severity vulnerability in Craftcms Cms, classified under Authentication Bypass by Capture-replay. CVSS score: 6.5/10. Published 2026-08-11.
- How severe is CVE-2026-72780?
- Medium severity. CVSS v3 base score is 6.5 out of 10.