Legcord up to 1.3.0 Theme IPC Handlers path traversal

Summaryinfo

A vulnerability was found in Legcord up to 1.3.0 and classified as critical. Affected by this issue is some unknown functionality of the component Theme IPC Handlers. Such manipulation leads to path traversal. This vulnerability is referenced as CVE-2026-105293. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Legcord up to 1.3.0. Affected by this issue is an unknown code of the component Theme IPC Handlers. 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. CVE summarizes:

Legcord 1.1.0 through 1.3.0 contains a path traversal vulnerability in theme IPC handlers that allows script in the Discord page to escape the themes directory via unvalidated theme ids. Attackers running script in the Discord origin, such as through XSS, can abuse themes.folder, themes.uninstall, and themes.install to launch local executables, recursively delete directories, and write files outside the themes directory.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-105293 since 10/05/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/05/2026). The MITRE ATT&CK project declares the attack technique as T1006.

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

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Productinfo

Name

• Legcord

Version

• 1.0
• 1.1
• 1.2
• 1.3.0

Website

• Product: https://github.com/Legcord/Legcord/

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