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CVE-2026-105294 Details

Description

Legcord 1.1.0 through 1.3.0 contains a configuration injection vulnerability that allows script in the Discord page to write any config key via the window.legcord settings.setConfig bridge. Attackers exploiting a Discord XSS can set additionalArguments to persistently add --proxy-server and --ignore-certificate-errors switches, routing all client traffic through an interception proxy.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.4 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Legcord/Legcord	[email protected]
https://github.com/Legcord/Legcord/blob/v1.3.0/src/discord/ipc.ts#L296-L299	[email protected]
https://github.com/Legcord/Legcord/blob/v1.3.0/src/main.ts#L277-L307	[email protected]
https://github.com/Legcord/Legcord/issues/1163	[email protected]
https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-chromium-switch-injection-via-settings-setconfig	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-15	External Control of System or Configuration Setting	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes