CVE-2026-105293

critical · 9.2

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.

9.2

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2026-10-05

Published

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-22

References

https://github.com/Legcord/Legcord
https://github.com/Legcord/Legcord/blob/v1.3.0/src/common/themes.ts#L269-L276
https://github.com/Legcord/Legcord/blob/v1.3.0/src/discord/ipc.ts#L201-L206
https://github.com/Legcord/Legcord/issues/1163
https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-path-traversal-via-theme-ipc-handlers

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-105293