What’s Vulnerable › Vulnerabilities

CVE-2026-61524: WebsiteBaker CMS < 2.13.10 File Upload RCE via Module Installation

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-03 · updated 2026-10-23
• Weakness: CWE-434

Description

WebsiteBaker CMS before 2.13.10 contains an unrestricted file upload vulnerability in the module installation feature that allows authenticated administrators to achieve remote code execution by uploading a crafted ZIP archive containing a PHP webshell alongside a valid info.php metadata file. Attackers can place the malicious archive through the module installation interface, causing the application to extract the webshell into a web-accessible modules/ subdirectory where it becomes immediately executable by any unauthenticated user via direct HTTP request.

Affected products

• WebsiteBaker Org e.V. WebsiteBaker CMS: before 2.13.10 — fixed in 2.13.10

How to fix

Upgrade to a fixed version: WebsiteBaker Org e.V. WebsiteBaker CMS 2.13.10. Check the vendor advisory for mitigations.

References

• https://addon.websitebaker.org/en/browse-add-ons/?type=5&cid=997
• https://medium.com/@benjaminasareagyapong2006/two-rce-vulnerabilities-i-found-on-my-birthday-evening-4563006a615a
• https://www.vulncheck.com/advisories/websitebaker-cms-file-upload-rce-via-module-installation

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