EUVD-2026-45946
GHSA-9mcw-g6wh-83hp
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local menu access with low privilege (AV:L/PR:L), trivial traversal (AC:L); primitive is arbitrary file write/rename giving high integrity/availability impact but only limited confidentiality (C:L).
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Directory Traversal vulnerability in Menyoo 2.0 Versions before commit 729aa48: fixed in commit 729aa48 allows a local attacker to execute arbitrary code via the Spooner file management, VehicleSpawner save/folder/rename functionality, WeaponOptions save/folder/rename functionality, PedComponentChanger create folder/createfile/rename functionality.
AnalysisAI
Path traversal in Menyoo (MenyooSP), a popular GTA V single-player trainer/mod, before commit 729aa48 lets a local user supply crafted file names (containing traversal sequences) to the Spooner, VehicleSpawner, WeaponOptions, and PedComponentChanger save/create-folder/rename functions, writing or renaming files outside the intended data directories. Because the resulting XML/config files can be planted in attacker-chosen locations, this escalates to arbitrary code execution in the victim's context. There is no public exploit identified at time of analysis and it is not in CISA KEV; the fix (added IsSafePath() input validation) is publicly visible in PR #550.
Technical ContextAI
Menyoo (MenyooSP) is a widely used single-player mod menu/trainer for Grand Theft Auto V, injected into the game process on Windows and persisting entity/vehicle/ped/weapon presets as XML files on disk. The flaw is CWE-22 (Improper Limitation of a Pathname to a Restricted Directory). The source evidence shows user-supplied name strings (inputStr / newName) concatenated directly into filesystem paths, e.g. _dir + "\\" + inputStr + ".xml" passed to SaveDbToFile/SaveWorldToFile, CreateDirectoryA, rename(), and ComponentChangerOutfit::Create, with no sanitization. Because Windows honors ..\ and absolute/drive-qualified paths, a name like ..\..\..\somewhere\payload breaks out of the Spooner/VehicleSpawner/WeaponOptions/PedComponentChanger base directories. The patch introduces an IsSafePath() guard that rejects invalid characters/traversal, plus a base-directory containment check on the Spooner 'back' navigation (_dir.find(baseDir) == 0).
RemediationAI
Update Menyoo/MenyooSP to a build that includes commit 729aa48 (delivered via PR #550), which adds IsSafePath() validation to the Spooner, VehicleSpawner, WeaponOptions, and PedComponentChanger save/create-folder/rename paths and a base-directory containment check on Spooner folder navigation - upstream fix available as a commit/PR, a formally tagged patched release is not independently confirmed. Because the project distributes as a source/binary mod rather than versioned packages, users should rebuild from the latest main branch or obtain a redistribution built after that commit; verify by confirming IsSafePath() is present in the compiled build. Interim compensating controls: only load Menyoo preset/XML files from trusted sources, avoid entering unusual names into save/rename dialogs, run GTA V/the trainer under a low-privilege user account to limit where planted files can land (trade-off: none significant for single-player use), and do not run the game/trainer as Administrator (trade-off: some mods expect elevated rights). Advisories: https://github.com/itsjustcurtis/MenyooSP/pull/550 and https://vuldb.com/vuln/380611.
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External POC / Exploit Code
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