Forced 2FA re-enrollment via nonce-free GET
Published Jul 17, 2026 · Updated Jul 17, 2026
CSRF in grav-plugin-login before 3.8.11 allows remote attackers to rotate a logged-in user's TOTP secret through an off-site GET. The login.regenerate2FASecret task accepts Grav's GET task URI without a nonce or origin check, creates a new secret, and saves it to the session user. Exploitation requires enabled 2FA, an enrolled user with an active session, and a cookie policy other than SameSite=Strict; the bounded impact is forced 2FA re-enrollment.
Summary
What happened
CSRF in grav-plugin-login before 3.8.11 allows remote attackers to rotate a logged-in user's TOTP secret through an off-site GET. The login.regenerate2FASecret task accepts Grav's GET task URI without a nonce or origin check, creates a new secret, and saves it to the session user. Exploitation requires enabled 2FA, an enrolled user with an active session, and a cookie policy other than SameSite=Strict; the bounded impact is forced 2FA re-enrollment.
The record
- CVE
- CVE-2026-62236
- Published
- Jul 17, 2026
- Updated
- Jul 17, 2026
- Vendor
- Grav
- Product
- Grav
- Classifications
- CWE-352, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 17, 2026CVE publishedPublication date reported by the CVE source.
- Jul 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3.8.11
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Top-level GET navigation proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo