{"schema_version":1,"title":"Element Web vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Element Web: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-119407, was published on 30 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.","url":"https://junglewise.ai/threats/technologies/element-web","json_url":"https://junglewise.ai/threats/technologies/element-web.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/element-web","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":1,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":2,"last_365_days":2},"latest":[{"cve":"CVE-2026-119407","cvss":7.1,"slug":"cve-2026-119407-element-web-and-element-desktop-before-1-12-32-accept-guest","title":"Element Web and Element Desktop URL fragment credential injection","severity":"high","exploited":false,"published_at":"2026-10-30T12:16:37.12+00:00","url":"https://junglewise.ai/threats/cve-2026-119407-element-web-and-element-desktop-before-1-12-32-accept-guest"},{"cve":"CVE-2026-55850","cvss":0,"epss":0.0055,"slug":"cve-2026-55850-element-web-cross-site-scripting-in-embedded-page","title":"Element Web cross-site scripting in embedded page","severity":"info","exploited":false,"published_at":"2026-08-21T19:17:04.23+00:00","url":"https://junglewise.ai/threats/cve-2026-55850-element-web-cross-site-scripting-in-embedded-page"},{"cve":"CVE-2021-40823","cvss":3.1,"slug":"cve-2021-40823-matrix-matrix-js-sdk-e2ee-room-key-disclosure-to-homeservers","title":"Matrix matrix-js-sdk E2EE room key disclosure to homeservers","severity":"low","exploited":false,"published_at":"2021-09-14T20:24:18+00:00","url":"https://junglewise.ai/threats/cve-2021-40823-matrix-matrix-js-sdk-e2ee-room-key-disclosure-to-homeservers"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Element Synapse","slug":"synapse","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/synapse"}],"technology":{"hub":true,"name":"Element Web","slug":"element-web","vendor":{"hub":true,"name":"Element","slug":"element","url":"https://junglewise.ai/threats/vendors/element"},"aliases":[],"category":"web-application","homepage":"https://element.io/","repo_url":"https://github.com/vector-im/element-web","description":"Web-based client for Matrix protocol messaging and collaboration platform.","url":"https://junglewise.ai/threats/technologies/element-web"},"most_severe":[{"cve":"CVE-2026-119407","cvss":7.1,"slug":"cve-2026-119407-element-web-and-element-desktop-before-1-12-32-accept-guest","title":"Element Web and Element Desktop URL fragment credential injection","severity":"high","exploited":false,"published_at":"2026-10-30T12:16:37.12+00:00","url":"https://junglewise.ai/threats/cve-2026-119407-element-web-and-element-desktop-before-1-12-32-accept-guest"},{"cve":"CVE-2021-40823","cvss":3.1,"slug":"cve-2021-40823-matrix-matrix-js-sdk-e2ee-room-key-disclosure-to-homeservers","title":"Matrix matrix-js-sdk E2EE room key disclosure to homeservers","severity":"low","exploited":false,"published_at":"2021-09-14T20:24:18+00:00","url":"https://junglewise.ai/threats/cve-2021-40823-matrix-matrix-js-sdk-e2ee-room-key-disclosure-to-homeservers"},{"cve":"CVE-2026-55850","cvss":0,"epss":0.0055,"slug":"cve-2026-55850-element-web-cross-site-scripting-in-embedded-page","title":"Element Web cross-site scripting in embedded page","severity":"info","exploited":false,"published_at":"2026-08-21T19:17:04.23+00:00","url":"https://junglewise.ai/threats/cve-2026-55850-element-web-cross-site-scripting-in-embedded-page"}],"generated_at":"2026-11-10T03:07:00.198065+00:00"}