diem-project diem up to 5.1.3 dmCodeEditor actions.class.php dmOs::join path traversal

Summaryinfo

A vulnerability has been found in diem-project diem up to 5.1.3 and classified as problematic. This affects the function dmOs::join of the file dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.php of the component dmCodeEditor. The manipulation leads to path traversal. This vulnerability is listed as CVE-2026-112138. The attack may be initiated remotely. In addition, an exploit is available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in diem-project diem up to 5.1.3. It has been rated as problematic. This issue affects the function dmOs::join of the file dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.php of the component dmCodeEditor. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-112138. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The exploit is available at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet. By approaching the search of inurl:dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Project Management Software

Vendor

• diem-project

Name

• diem

Version

• 5.1.0
• 5.1.1
• 5.1.2
• 5.1.3

Website

• Product: https://github.com/diem-project/diem/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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• 🔒
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Exploitinginfo

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Timelineinfo

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Entryinfo

Submitinfo

Accepted

• Submit #1013200: diem-project diem 116974edfb9a5b8bd69cb13586dc62bcdbb485ad Absolute Path Traversal (by 100001001X)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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