DedeCMS up to 5.7.118 dede/update_guide.php require_once vtime code injection

Summaryinfo

A vulnerability classified as problematic was found in DedeCMS up to 5.7.118. The affected element is the function require_once of the file dede/update_guide.php. Such manipulation of the argument vtime leads to code injection. This vulnerability is documented as CVE-2026-116063. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in DedeCMS up to 5.7.118 and classified as problematic. Affected by this issue is the function require_once of the file dede/update_guide.php. The manipulation of the argument vtime with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-116063. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. Technical details as well as a public exploit are known. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The exploit is available at github.com. It is declared as proof-of-concept. By approaching the search of inurl:dede/update_guide.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Content Management System

Name

• DedeCMS

Version

• 5.7.118

License

• commercial

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Submitinfo

Accepted

• Submit #999433: DedeCMS 5.7.118 Code Injection (by Fantiane)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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