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Advisories

Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig

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severity
critical
date
Affecting

  • Legcord >= 1.1.0, <= 1.3.0

CWE
  • CWE-15 External Control of System or Configuration Setting
CVSS
9.1
CVSS V4 Vector
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
Credit
Siyang Wu
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.

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