Vulnerability in thorsten/phpmyfaq (CVE-2026-35671)
Summary
Vulnerability in thorsten/phpmyfaq (CVE-2026-35671). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 4.1.3 or later.
Original description
The description as published by the source.
Summary
An Insecure Direct Object Reference (IDOR) vulnerability in phpMyFAQ's Admin API allows any authenticated administrator to change the password of any user account, including SuperAdmin accounts (userId=1), without authorization verification. An attacker with a low-privilege admin account can escalate privileges to full SuperAdmin control by simply changing the target user's ID in the API request body.
Details
File: phpmyfaq/src/phpMyFAQ/Controller/Administration/Api/UserController.php
Lines: 232-271
The overwritePassword() method at line 232 accepts PUT requests to /admin/api/user/overwrite-password:
#[Route(path: 'user/overwrite-password', name: 'admin.api.user.overwrite-password', methods: ['PUT'])]
public function overwritePassword(Request $request): JsonResponse
{
$this->userHasUserPermission(); // Only checks if user has USER_EDIT permission
$currentUser = CurrentUser::getCurrentUser($this->configuration);
$data = json_decode($request->getContent());
$userId = Filter::filterVar($data->userId, FILTER_VALIDATE_INT); // User-controlled!
$csrfToken = Filter::filterVar($data->csrf, FILTER_SANITIZE_SPECIAL_CHARS);
$newPassword = Filter::filterVar($data->newPassword, FILTER_SANITIZE_SPECIAL_CHARS);
$retypedPassword = Filter::filterVar($data->passwordRepeat, FILTER_SANITIZE_SPECIAL_CHARS);
if (!Token::getInstance($this->session)->verifyToken(page: 'overwrite-password', requestToken: $csrfToken)) {
return $this->js…
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-35671 has been found in thorsten/phpmyfaq.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: upgrade thorsten/phpmyfaq to 4.1.3 or later.
If unsure, ask your IT team or search "thorsten/phpmyfaq CVE-2026-35671" on the vendor's site.
CVE-2026-35671 (thorsten/phpmyfaq) — CWE-266 / CVSS v3 8.8
Attack vector: remote (network-reachable) / no user interaction
Patched: 4.1.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-266) exists in thorsten/phpmyfaq.
Check the vendor advisory for the affected versions of thorsten/phpmyfaq.
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover.
Update to 4.1.3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'thorsten/phpmyfaq' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'thorsten/phpmyfaq' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
thorsten/phpmyfaqを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade thorsten/phpmyfaq to 4.1.3ステージング環境で 4.1.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- package github.com
- web github.com
- web github.com
- web disclosure@vulncheck.com