{"id":"CVE-2026-56660","title":"GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS","summary":"GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. Prior to version 1.5, the update handler in UpdateCE.php downloads a ZIP archive and extracts its contents into the web root w…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-352","CWE-434","CWE-918"],"vendor":"GetSimpleCMS-CE","product":"GetSimpleCMS-CE","affected":["GetSimpleCMS-CE < 1.5"],"published":"2026-10-01","updated":"2026-10-01","sourceUpdated":"2026-10-01T20:23:46.493","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-56660","references":[{"url":"https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-q5rx-gppg-768r","label":"security-advisories@github.com"},{"url":"https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-q5rx-gppg-768r","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-01T19:53:21.941385Z"},"ingestedAt":"2026-10-01T19:58:57.567Z","slug":"CVE-2026-56660","body":"## Overview\n\nGetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. Prior to version 1.5, the update handler in UpdateCE.php downloads a ZIP archive and extracts its contents into the web root without validating file types or extraction paths. Because PHP files are written into a web-accessible directory, an attacker who can cause a malicious archive to be processed achieves remote code execution as the web-server user. Entry names are also used unsafely, allowing directory traversal (../) to write files outside the intended extraction directory. This issue has been patched in version 1.5.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":214704,"id":"CVE-2026-56660","ts":1790888506577,"field":"exploit_available","old":"false","new":"true"}]}