Medium severity · published Aug 19, 2026
CVE-2026-62671
CSRF in grav-plugin-login: anonymous attacker rotates a logged-in user's 2FA (TOTP) secret (no nonce on task=login.regenerate2FASecret)
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
Grav Login Plugin adds login, basic ACL, and session wide messages to Grav. Prior to 3.8.11, the Grav Login plugin login.regenerate2FASecret task accepts a top-level GET request through the TaskServiceProvider task: URI parameter without requiring a login-form nonce, an Origin check, or a Referer check. Under the default SameSite=Lax session cookie policy, an off-site navigation can invoke taskRegenerate2FASecret() in a logged-in victim's session, overwrite the victim's TOTP secret, and force two-factor re-enrollment. This issue is fixed in version 3.8.11.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav-plugin-login · getgrav
< 3.8.11 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-62671
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-62671
github.com
https://github.com/getgrav/grav-plugin-login/commit/5d1b722298cb947d8f434025d121b99152a2c630
github.com
https://github.com/getgrav/grav-plugin-login/releases/tag/3.8.11
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-4px8-7p53-282r
More from grav-plugin-login
8.8
CVE-2026-114658
Grav Login plugin 3.6.0 before 3.9.13 Privilege Escalation via login.invite
8.1
CVE-2026-109313
Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Remember-Me Cookie
8.1
CVE-2026-109312
Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form
7.4
CVE-2026-62669
Grav Login Plugin: 2FA Bypass via 'login.regenerate2FASecret' - Secret Rotation During Pending Challenge
7.3
CVE-2026-109314
Grav Login Plugin 1.2.0 before 3.9.9 Password Reset Token Disclosure via Reset Page