Vulnerability · Published Apr 6, 2026 · Assigned by GitHub_M

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

Critical 9.3

In plain English

A critical-severity unrestricted file upload in BraveCMS-2.0 from Ajax30. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.6%top 52.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Ajax30	BraveCMS-2.0	< 2.0.6

Weakness: CWE-434 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/Ajax30/BraveCMS-2.0/security/advisories/GHSA-9rcc-w59j-965v x_refsource_CONFIRM
https://github.com/Ajax30/BraveCMS-2.0/pull/122 x_refsource_MISC
https://github.com/Ajax30/BraveCMS-2.0/commit/058ee4ed7c2b39d540af8274024afcbc9532aa83 x_refsource_MISC