What’s Vulnerable › Vulnerabilities
CVE-2026-57311: Unrestricted Upload of File with Dangerous Type in Windu CMS
- Severity: medium (CVSS 5.3 v4.0)
- 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: none known
- Published: 2026-07-20 · updated 2026-10-24
- Weakness: CWE-434
Description
Windu CMS does not validate types of uploaded files. An authenticated attacker can upload arbitrary files, including PHP. This can lead to Remote Code Execution. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 4.1 but may also affect other versions.
Affected products
- JCD Windu CMS: 4.1
References
Get alerted when CVE-2026-57311 or the next vulnerability affects your stack