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TI-2026-41248 Aliases CVE-2026-57311GHSA-m87v-9vv3-8824

Unrestricted Upload of File with Dangerous Type in Windu CMS

Priority LOW 25CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00633 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JCDWindu CMS4.1—No fix listedCNA
  • Windu CMS VendorJCD Affected 4.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:windu:windu_cms:*:*:*:*:*:*:*:*——JCD
  • cpe:2.3:a:windu:windu_cms:*:*:*:*:*:*:*:* Versions — — ·JCD

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57311
  2. 2026-10-03 Alias added: GHSA-m87v-9vv3-8824
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 1

Other 1

  • TI-2026-41246 Blind SQL Injection in Windu CMS CVSS 4.0CRITICAL 9.3
  • TI-2013-06125 Windu CMS 2.2 allows CSRF via admin/users/?mn=admin.message.error to add an admin account. CVSS 3.0HIGH 8.8
  • TI-2025-36731 User enumeration in Windu CMS CVSS 4.0MEDIUM 6.9
  • TI-2025-36728 Bruteforce Protection Bypass in Windu CMS CVSS 4.0MEDIUM 6.9
  • TI-2025-36726 Broken Access Control in Windu CMS CVSS 4.0MEDIUM 6.9
  • TI-2025-36725 Cross-Site Request Forgery in Windu CMS CVSS 4.0MEDIUM 6.8
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences