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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-56660

GetSimple CMS: CSRF, SSRF, and Unrestricted Zip Extraction

Description

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 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GetSimpleCMS-CE GetSimpleCMS-CE

  • < 1.5affected

References