What’s Vulnerable › Vulnerabilities

CVE-2025-32957: baserCMS: unsafe File Upload Leading to Remote Code Execution (RCE)

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-31 · updated 2026-06-17
• Weakness: CWE-434

Description

baserCMS is a website development framework. Prior to version 5.2.3, the application's restore function allows users to upload a .zip file, which is then automatically extracted. A PHP file inside the archive is included using require_once without validating or restricting the filename. An attacker can craft a malicious PHP file within the zip and achieve arbitrary code execution when it is included. This issue has been patched in version 5.2.3.

Affected products

• baserproject basercms: before 5.2.3 — fixed in 5.2.3

How to fix

Upgrade to a fixed version: baserproject basercms 5.2.3. Check the vendor advisory for mitigations.

References

• https://basercms.net/security/JVN_20837860
• https://github.com/baserproject/basercms/releases/tag/5.2.3
• https://github.com/baserproject/basercms/security/advisories/GHSA-hv78-cwp4-8r7r
• https://github.com/baserproject/basercms/security/advisories/GHSA-hv78-cwp4-8r7r

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