{"id":"CVE-2026-28495","summary":"GetSimple CMS has CSRF to Remote Code Execution via Arbitrary PHP Write in gsconfig.php","details":"GetSimple CMS is a content management system. The massiveAdmin plugin (v6.0.3) bundled with GetSimpleCMS-CE v3.3.22 allows an authenticated administrator to overwrite the gsconfig.php configuration file with arbitrary PHP code via the gsconfig editor module. The form lacks CSRF protection, enabling a remote unauthenticated attacker to exploit this via Cross-Site Request Forgery against a logged-in admin, achieving Remote Code Execution (RCE) on the web server.","aliases":["GHSA-92wv-q2jp-qg88"],"modified":"2026-04-10T05:41:19.088566Z","published":"2026-03-10T19:25:00.732Z","database_specific":{"cwe_ids":["CWE-352"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28495.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28495.json"},{"type":"ADVISORY","url":"https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-92wv-q2jp-qg88"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28495"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/getsimplecms-ce/getsimplecms-ce","events":[{"introduced":"0"},{"last_affected":"5486c10c75111e93404413fea6408f53dbffd930"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"3.3.22"}]}}],"versions":["v3.3.16","v3.3.17","v3.3.18.1","v3.3.21","v3.3.22"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28495.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"}]}