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CVE

CVE-2026-105294

Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig
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CVE

CVE-2026-105294

Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/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
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105294.json, https://nvd.nist.gov/vuln/detail/CVE-2026-105294, https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-chromium-switch-injection-via-settings-setconfig, https://github.com/Legcord/Legcord/issues/1163, https://github.com/Legcord/Legcord, https://github.com/Legcord/Legcord/blob/v1.3.0/src/discord/ipc.ts#L296-L299, https://github.com/Legcord/Legcord/blob/v1.3.0/src/main.ts#L277-L307

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.00189%
EPSS Percentile
0.08569%
Introduced Version
07451f0d7e110cf6d31d0e32abedcefcff256d78
Fix Available

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