getgrav up to 3.8.10 Login regenerate2FASecret cross-site request forgery

Summaryinfo

A vulnerability identified as problematic has been detected in getgrav grav up to 3.8.10. Affected by this vulnerability is the function regenerate2FASecret of the component Login. Performing a manipulation results in cross-site request forgery. This vulnerability is identified as CVE-2026-62236. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in getgrav grav up to 3.8.10. This affects the function regenerate2FASecret of the component Login. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-62236 since 07/13/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.8.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-45082). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• getgrav

Name

• grav

Version

• 3.8.0
• 3.8.1
• 3.8.2
• 3.8.3
• 3.8.4
• 3.8.5
• 3.8.6
• 3.8.7
• 3.8.8
• 3.8.9
• 3.8.10

Website

• Product: https://github.com/getgrav/grav/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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