What is CVE-2026-35164?

CVE-2026-35164 is a high-severity vulnerability in Ajax30 Bravecms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-04-06.

How severe is CVE-2026-35164?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Ajax30 Bravecms

CVE-2026-35164

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.

Vulnerability class: Unrestricted File Upload

Published 2026-04-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.001

Affected products

Ajax30 Bravecms
Ajax30 Bravecms-2.0 — versions < 2.0.6

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/Ajax30/BraveCMS-2.0/security/advisories/GHSA-2j4q-6p52-4rhw (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-35164?: CVE-2026-35164 is a high-severity vulnerability in Ajax30 Bravecms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-04-06.
How severe is CVE-2026-35164?: High severity. CVSS v3 base score is 8.8 out of 10.