CVE-2026-56660
GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition…
- Risk score
- 63/100
- CVSS
- 9.1 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 1 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 in…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.5 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.1 critical
References
Original 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.
Last activity 1 Oct 2026. Patch Forecast updates every hour.