CVE-2026-116253: DedeCMS advertisement rendering code injection in aid parameter

CVE-2026-116253 · Severity: high · CVSS 7.3 · Published 2026-10-26

DedeCMS is a content management system used to build and manage websites. A vulnerability in the advertisement rendering component allows an attacker to inject malicious code by manipulating a parameter, potentially leading to unauthorized command execution and website compromise.

Technologies: DedeCMS. Vendors: DedeCMS.

Quick answers

Is CVE-2026-116253 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-116253 being exploited in the wild.
How severe is CVE-2026-116253?
High severity, with a CVSS score of 7.3, published 26 October 2026.
Which products and versions are affected?
DedeCMS 5.7.118.
Is there a fix for CVE-2026-116253?
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-2026-116253 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-116253?
Check whether you run DedeCMS 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

A code injection vulnerability exists in the advertisement rendering functionality of DedeCMS 5.7.118, specifically in the _RunMagicQuotes function within plus/ad_js.php. The vulnerability is triggered through improper handling of the aid parameter, allowing an attacker to inject arbitrary code that executes remotely without authentication required.

Affected products

  • DedeCMS DedeCMS 5.7.118

Timeline

  • 2026-10-26: disclosed

References

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