# CVE-2026-116063: DedeCMS code injection in update_guide.php

Source: https://junglewise.ai/threats/cve-2026-116063-a-weakness-has-been-identified-in-dedecms-up-to-5-7-118-impacted  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-25. Updated: 2026-10-25  
License: CC BY 4.0 with a link back

CVE-2026-116063 · Severity: medium · CVSS 4.7 · Published 2026-10-25

DedeCMS is a content management system used to build and manage websites. A code injection vulnerability in the update guide function allows unauthenticated attackers to execute arbitrary code remotely on affected systems. Successful exploitation could lead to complete server compromise and data theft.

## Quick answers

**Is CVE-2026-116063 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116063 being exploited in the wild.

**How severe is CVE-2026-116063?** Medium severity, with a CVSS score of 4.7, published 25 October 2026.

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

**Is there a fix for CVE-2026-116063?** 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-2026-116063 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-116063?** 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

The vulnerability is a code injection flaw (CWE-94, CWE-96) in the require_once function of dede/update_guide.php, triggered via manipulation of the vtime argument. The attack is network-accessible and requires no authentication. Successful exploitation grants remote code execution on the affected system.

## Affected products

- DedeCMS up to 5.7.118

## Timeline

- 2026-09-25: disclosed
- 2026-10-25: advisory

## References

- [https://github.com/SDshadow/cve](https://github.com/SDshadow/cve)
- [https://github.com/SDshadow/cve/tree/main/DedeCMS/V5.7.118-update_guide-RCE/poc](https://github.com/SDshadow/cve/tree/main/DedeCMS/V5.7.118-update_guide-RCE/poc)