# CVE-2026-94004: DedeCMS code injection in plus/mytag_js.php

Source: https://junglewise.ai/threats/cve-2026-94004-a-vulnerability-was-found-in-dedecms-up-to-5-7-118-the-affected  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-20. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-94004 · Severity: high · CVSS 7.3 · Published 2026-09-20

DedeCMS is a content management system used to publish and manage website content. A vulnerability in the plus/mytag_js.php file allows remote attackers to inject and execute arbitrary code through the aid parameter, potentially giving them full control of the website and underlying server.

Technologies: [DedeCMS](https://junglewise.ai/threats/technologies/dedecms). Vendors: [DedeCMS](https://junglewise.ai/threats/vendors/dedecms).

## Quick answers

**Is CVE-2026-94004 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94004 being exploited in the wild.

**How severe is CVE-2026-94004?** High severity, with a CVSS score of 7.3, published 20 September 2026.

**Which products and versions are affected?** DedeCMS up to 5.7.118.

**Is there a fix for CVE-2026-94004?** 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-2026-94004 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-94004?** 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 DedeCMS's plus/mytag_js.php file where the aid parameter is not properly sanitized before processing. An unauthenticated attacker can send a crafted request over the network to inject arbitrary code that will be executed server-side, resulting in remote code execution.

## Affected products

- DedeCMS DedeCMS up to 5.7.118

## Timeline

- 2026-09-20: disclosed

## References

- [https://vuldb.com/cve/CVE-2026-94004](https://vuldb.com/cve/CVE-2026-94004)
- [https://vuldb.com/submit/944743](https://vuldb.com/submit/944743)

## Related threats

- [DedeCMS local file inclusion in carbuyaction.php](https://junglewise.ai/threats/cve-2010-20125-dedecms-before-5-7-contains-a-file-inclusion-vulnerability-in)
- [DedeCMS advertisement rendering code injection in aid parameter](https://junglewise.ai/threats/cve-2026-116253-a-vulnerability-was-determined-in-dedecms-5-7-118-this)
- [DedeCMS PHP code injection in ShowMsg](https://junglewise.ai/threats/cve-2021-48016-dedecms-through-5-8-1-beta-contains-a-php-code-injection)
- [DedeCMS reflected cross-site scripting in config.php](https://junglewise.ai/threats/cve-2014-125131-dedecms-5-6-and-5-7-contains-a-reflected-cross-site-scripting)
- [DeDeCMS unrestricted file upload in media dialog](https://junglewise.ai/threats/cve-2026-76800-dedecms-unrestricted-file-upload-in-media-dialog)