CVE-2026-35047 Brave CMS has Unrestricted File Upload in BraveCMS via CKEditor Endpoint

Critical 9.3 Published 6 Apr 2026 Updated 7 Apr 2026

Attackers can upload arbitrary executable files via the CKEditor endpoint in Brave CMS, leading to remote code execution and full system compromise.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-35047?

CVE-2026-35047 is a critical vulnerability in Ajax30 BraveCMS-2.0, published on 6 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Brave CMS is an open-source CMS. Prior to 2.0.6, an Unrestricted File Upload vulnerability in the CKEditor endpoint allows attackers to upload arbitrary files, including executable scripts. This may lead to Remote Code Execution (RCE) on the server, potentially resulting in full system compromise, data exfiltration, or service disruption. All users running affected versions of BraveCMS are impacted. This vulnerability is fixed in 2.0.6.

Weakness: CWE-434

Which versions are affected by CVE-2026-35047?

It affects 1 product.

Products include Ajax30 Bravecms.

How do I fix CVE-2026-35047?

No fix has been published for CVE-2026-35047 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-35047 being exploited?

There is no known exploitation of CVE-2026-35047 in the wild and no public exploit code.

Sources

Also known as GHSA-9rcc-w59j-965v.