Quick answers
- Is CVE-2026-53691 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-53691 being exploited in the wild.
- How severe is CVE-2026-53691?
- Informational severity, with a CVSS score of 8.6, published 30 June 2026.
- Which products and versions are affected?
- Redeight CMS 1.0.
- Is there a fix for CVE-2026-53691?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-53691 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-53691?
- Check whether you run Redeight CMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An unrestricted file upload vulnerability exists in Redeight CMS 1.0 within the '/admin/index.php?module=pages&mode=FileAdd' endpoint. The application fails to validate file extensions or MIME types for uploaded files. An authenticated attacker can exploit this by uploading a malicious PHP script to the '/uploads/files/' directory, which is publicly accessible. Because the web server executes scripts in this directory, the attacker can achieve Remote Code Execution (RCE) on the underlying host.
Affected products
- Redeight Redeight CMS 1.0
Timeline
- 2026-06-30: disclosed: Vulnerability disclosed by CERT.PL
- 2026-06-30: advisory