{"schema":"threatline.record/2","record":{"id":"CVE-2026-55695","aliases":["GHSA-56wm-3q3v-m93m"],"summary":"FearlessCMS: Remote Code Execution via Unvalidated Update Repository URL in System Updater","details":"FearlessCMS is a flat-file content management system centered on simplicity and open source. In 0.1.2b and earlier, an authenticated administrator can set an arbitrary Git repository URL through admin/updater-handler.php and trigger perform_update, which passes the URL to update.sh. The updater clones the repository and replaces the live plugins/, admin/, and includes/ directories without verifying the repository's identity, signatures, or contents. Because router.php permits existing PHP files under plugins to be executed by the PHP development server, attacker-supplied update content can execute arbitrary PHP with the web server process's privileges and persist as a backdoor. This issue is fixed in version 0.1.3b.","categories":["Unclassified"],"product":"FearlessCMS","vendor":"fearlessgeekmedia","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-55695","source_modified_at":"2026-10-13T16:12:15.791Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"FearlessCMS","vendor":"fearlessgeekmedia","versions":[{"status":"affected","version":"< 0.1.3b"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/fearlessgeekmedia/FearlessCMS/security/advisories/GHSA-56wm-3q3v-m93m","source_modified_at":"2026-06-17T14:37:37Z","fetched_at":"2026-10-23T19:00:29.328130Z","package":{"ecosystem":"composer","name":"fearlessgeek/fearlesscms"},"range":"≤ 0.1.2b"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/fearlessgeekmedia/FearlessCMS/security/advisories/GHSA-56wm-3q3v-m93m","source_modified_at":"2026-06-17T14:37:37Z","fetched_at":"2026-10-23T19:00:29.328130Z","package":{"ecosystem":"composer","name":"fearlessgeek/fearlesscms"},"version":"0.1.3b"}],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00465,"percentile":0.39343,"score_date":"2026-10-23"},"published_at":"2026-10-13T15:51:02.854Z","modified_at":"2026-10-13T16:12:15.791Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-55695","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-13T16:12:15.791Z"},{"source":"GitHub Advisory Database","url":"https://github.com/fearlessgeekmedia/FearlessCMS/security/advisories/GHSA-56wm-3q3v-m93m","fetched_at":"2026-10-23T19:00:29.328130Z","source_modified_at":"2026-06-17T14:37:37Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-55695","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/fearlessgeekmedia/FearlessCMS/security/advisories/GHSA-56wm-3q3v-m93m","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/fearlessgeekmedia/FearlessCMS/pull/64","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/fearlessgeekmedia/FearlessCMS/commit/6dba91d496463e3940a2c917af3cae97b191de92","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/fearlessgeekmedia/FearlessCMS/releases/tag/0.1.3","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"total","assessed_at":"2026-10-13T16:12:10.331076Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-13T16:12:15.791Z","content_hash":"982409e248c6fda5bd12639d047611a15491b4b1e44688df0a79ca600d1e7183"}}