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TI-2026-27318 Aliases CVE-2026-35164

Brave CMS Sffected by Unrestricted File Upload via CKEditor Endpoint

Priority HIGH 73CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

Brave CMS is an open-source CMS. Prior to 2.0.6, an unrestricted file upload vulnerability exists in the CKEditor upload functionality. It is found in app/Http/Controllers/Dashboard/CkEditorController.php within the ckupload method. The method fails to validate uploaded file types and relies entirely on user input. This allows an authenticated user to upload executable PHP scripts and gain Remote Code Execution. This vulnerability is fixed in 2.0.6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0072 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed BraveCMS-2.0 (Ajax30): 2.0.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Ajax30BraveCMS-2.0before 2.0.62.0.6Patch availableCNA
  • BraveCMS-2.0 VendorAjax30 Affected before 2.0.6 Fixed in 2.0.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ajax30:bravecms:*:*:*:*:*:*:*:*2.0.0 to before 2.0.6VulnerableAjax30
  • cpe:2.3:a:ajax30:bravecms:*:*:*:*:*:*:*:* Versions 2.0.0 to before 2.0.6 Vulnerable ·Ajax30

Remediation

  • Fix · CNA BraveCMS-2.0 (Ajax30) Fixed in 2.0.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35164

References

Exploit 1

  • TI-2026-27336 Missing authorization privilege escalation in Ajax30 BraveCMS-2.0 CVSS 3.1HIGH 8.8
  • TI-2026-27337 Brave CMS has an Insecure Direct Object Reference in Article Image Deletion CVSS 3.1HIGH 7.1
  • TI-2026-27250 Brave CMS has Unrestricted File Upload in BraveCMS via CKEditor Endpoint CVSS 4.0CRITICAL 9.3

Sources

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