{"id":"CVE-2020-8291","aliases":["EUVD-2020-29159","GHSA-5vc2-xx2f-qhg3"],"status":"published","title":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS...","description":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00627,"percentile":0.50343,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-10-18T12:48:17Z","modified":"2026-10-20T10:54:25Z","products":[{"vendor":"rocket.chat","product":"rocket.chat"}],"references":[{"url":"https://github.com/RocketChat/Rocket.Chat/pull/19854","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8291"},{"url":"https://github.com/advisories/GHSA-5vc2-xx2f-qhg3"}],"sources":{"cve":[{"id":"CVE-2020-8291","description":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.","status":"published","published":"2021-10-18T12:48:17Z","modified":"2024-08-04T09:56:28.388Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29159","description":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.","status":"published","published":"2021-10-18T12:48:17Z","modified":"2024-08-04T09:56:28Z","updated_at":"2026-11-03T03:07:57.599144Z"}],"ghsa":[{"id":"GHSA-5vc2-xx2f-qhg3","title":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS...","description":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.","status":"published","published":"2022-05-24T19:17:50Z","modified":"2023-01-30T05:02:50Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:46:43.616467Z"}],"nvd":[{"id":"CVE-2020-8291","description":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.","status":"published","published":"2021-10-18T13:15:09.063Z","modified":"2026-06-17T03:26:14.05Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:45.704484Z"}],"osv":[{"id":"CVE-2020-8291","description":"A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.","status":"published","published":"2021-10-18T13:15:09.063Z","modified":"2026-10-20T10:54:25.217015191Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:17.663289Z"}]}}