SuperAdmin takeover via unchecked password target ID
Published May 28, 2026 · Updated May 28, 2026
Missing authorization in phpMyFAQ before 4.1.3 allows remote authenticated users to take over a SuperAdmin account through the Admin API. UserController::overwritePassword accepts a userId from the PUT request and changes that account's password after checking only USER_EDIT permission and a CSRF token. A low-privilege administrator with USER_EDIT permission and a valid session token can target userId 1, then authenticate as SuperAdmin with the replacement password.
Summary
What happened
Missing authorization in phpMyFAQ before 4.1.3 allows remote authenticated users to take over a SuperAdmin account through the Admin API. UserController::overwritePassword accepts a userId from the PUT request and changes that account's password after checking only USER_EDIT permission and a CSRF token. A low-privilege administrator with USER_EDIT permission and a valid session token can target userId 1, then authenticate as SuperAdmin with the replacement password.
The record
- CVE
- CVE-2026-35671
- Published
- May 28, 2026
- Updated
- May 28, 2026
- Vendor
- Thorsten Rinne
- Product
- phpMyFAQ
- Classifications
- CWE-862, CWE-639, CWE-269, CWE-266, T1098, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 28, 2026CVE publishedPublication date reported by the CVE source.
- May 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <4.1.3
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- GHSA-xvp4-phqj-cjr3 authenticated password-overwrite proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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