CVE-2026-53691 Remote Code Execution in Redeight CMS
Authenticated attackers can upload arbitrary PHP scripts to achieve remote code execution due to missing file validation in Redeight CMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-53691?
CVE-2026-53691 is a high-severity vulnerability in Redeight CMS, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An Unrestricted File Upload vulnerability in Redeight CMS version 1.0 allows authenticated attackers to achieve Remote Code Execution via the POST "/admin/index.php?module=pages&mode=FileAdd" endpoint. The application fails to validate file extensions and MIME types, permitting the upload of arbitrary PHP scripts to the publicly accessible "/uploads/files/" directory where they can be executed directly by the web server.
Weakness: CWE-434
Which versions are affected by CVE-2026-53691?
How do I fix CVE-2026-53691?
No fix has been published for CVE-2026-53691 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-53691 being exploited?
There is no known exploitation of CVE-2026-53691 in the wild and no public exploit code.
Sources
Also known as GHSA-gxmr-q5p5-p9w5.