{"id":"CVE-2026-105294","title":"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","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 addi…","severity":"high","cvss":7.4,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-15"],"vendor":"Legcord","product":"Legcord","affected":["Legcord >= 1.1.0 <= 1.3.0"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T01:16:28.923","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-105294","references":[{"url":"https://github.com/Legcord/Legcord","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Legcord/Legcord/blob/v1.3.0/src/discord/ipc.ts#L296-L299","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Legcord/Legcord/blob/v1.3.0/src/main.ts#L277-L307","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Legcord/Legcord/issues/1163","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-chromium-switch-injection-via-settings-setconfig","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-05T01:08:41.782Z","slug":"CVE-2026-105294","body":"## Overview\n\nLegcord 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":40.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}