MEDIUM 6.3 NVD
CVE-2026-72701
Grav CMS before 2.0.16 contains a timing vulnerability in Utils::verifyNonce() that uses non-constant-time string comparison with the === operator instead of ha
Grav CMS before 2.0.16 contains a timing vulnerability in Utils::verifyNonce() that uses non-constant-time string comparison with the === operator instead of hash_equals() for CSRF nonce validation. Attackers can measure response timing differences to recover valid nonce values byte-by-byte through multiple requests, weakening CSRF protection below its intended security margin.
References
- https://github.com/getgrav/grav/security/advisories/GHSA-38p6-h87p-r4cg
- https://www.vulncheck.com/advisories/grav-cms-before-timing-attack-via-verifynonce
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-08-25 via NVD.
vulnfeed aggregates 11266 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.