{"schema":"threatline.record/2","record":{"id":"CVE-2026-105294","aliases":[],"summary":"Legcord 1.1.0 through 1.3.0 Chromium Switch Injection via settings.setConfig","details":"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.","categories":["Unclassified"],"product":"Legcord","vendor":"Legcord","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105294","source_modified_at":"2026-10-05T20:28:31.628Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Legcord","vendor":"Legcord","versions":[{"version":"1.1.0","lessThanOrEqual":"1.3.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00189,"percentile":0.08056,"score_date":"2026-10-23"},"published_at":"2026-10-05T00:44:19.284Z","modified_at":"2026-10-05T20:28:31.628Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-105294","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-05T20:28:31.628Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-105294","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/Legcord/Legcord/issues/1163","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/Legcord/Legcord","tags":["product"]},{"source":"CVE List","url":"https://github.com/Legcord/Legcord/blob/v1.3.0/src/discord/ipc.ts#L296-L299","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/Legcord/Legcord/blob/v1.3.0/src/main.ts#L277-L307","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/legcord-1.1.0-through-1.3.0-chromium-switch-injection-via-settings-setconfig","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-05T19:18:28.394263Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-05T20:28:31.628Z","content_hash":"4e0b97a85cdcedca78863672703ab138ee3b5d0175125143b3d341ee7c56c59f"}}