CVE-2026-105294 (GCVE-0-2026-105294)

Vulnerability from cvelistv5 – Published: 2026-10-05 00:44 – Updated: 2026-10-05 20:28
VLAI
Title
Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig
Summary
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.
Severity
9.1 (Critical)
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
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 19:18 UTC
CWE
  • CWE-15 - External Control of System or Configuration Setting
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6106 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Legcord Legcord Affected: 1.1.0 , ≤ 1.3.0 (semver)
guessed Create a notification for this product.
Date Public
2026-08-30 00:00
Credits
Siyang Wu
Show details on NVD website
To clipboard 

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