Vulnerability · Published Jul 17, 2026 · Assigned by VulnCheck
CVE-2026-62236grav-plugin-login < 3.8.11 CSRF via regenerate2FASecret
Medium 5.4
In plain English
A medium-severity cross-site request forgery in grav from getgrav. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Official description
grav-plugin-login before 3.8.11 contains a cross-site request forgery (CSRF) vulnerability in the login.regenerate2FASecret frontend task, which regenerates and persists a new TOTP secret for the authenticated session user without any anti-CSRF nonce or Origin/Referer check. Because Grav core dispatches the task from the GET 'task:' URI parameter and the default session cookie is SameSite=Lax, an attacker can lure a logged-in victim to an off-site page that performs a top-level GET navigation, rotating the victim's TOTP secret so their enrolled authenticator no longer matches the server, effectively forcing 2FA re-enrollment. Sites configured with session.samesite: Strict are not affected.
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
References
- GitHub Security Advisory (GHSA-4px8-7p53-282r) vendor-advisory
- VulnCheck Advisory: grav-plugin-login < 3.8.11 CSRF via regenerate2FASecret third-party-advisory