CVE-2026-57311CWE-434

Unrestricted Upload of File with Dangerous Type in Windu CMS

Medium · published July 20, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
49.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L
EPSS
0.00633 · 49.7th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-07-20T12:53Z
EPSS history
Timeline
  • 20 JUL 12:53Z
    Unrestricted Upload of File with Dangerous Type in Windu CMS
    cvelistv5