CVE-2026-57311
Unrestricted Upload of File with Dangerous Type in Windu CMS
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-434 |
| Vendor | jcd |
| Product | windu cms |
| Published | Jul 20, 2026 |
| Last Updated | Jul 20, 2026 |
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Affected Versions
JCD / Windu CMS
4.1
References
Credits
Jakub Lipiński Marek Tołczyk Kamil Królikowski