{"id":"CVE-2026-105294","state":"PUBLISHED","title":"Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig","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.","publishedAt":"2026-10-05T00:44:19.284Z","updatedAt":"2026-10-05T20:28:31.628Z","severity":{"score":9.1,"label":"Critical","version":"4.0","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","source":"VulnCheck"},"assigner":"VulnCheck","products":["Legcord Legcord"],"affected":[{"vendor":"Legcord","product":"Legcord","defaultStatus":"unaffected","versions":[{"version":"1.1.0","status":"affected","lessThanOrEqual":"1.3.0","versionType":"semver"}]}],"references":["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","https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-chromium-switch-injection-via-settings-setconfig"],"weaknesses":["CWE-15"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105294.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105294","state":"PUBLISHED","datePublished":"2026-10-05T00:44:19.284Z","dateUpdated":"2026-10-05T20:28:31.628Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-05T00:19:08.246Z"},"containers":{"cna":{"title":"Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig","descriptions":[{"lang":"en","value":"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. 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