{"schema":"threatline.record/2","record":{"id":"CVE-2020-35730","aliases":[],"summary":"Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability","details":"Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows an attacker to send a plain text e-mail message with Javascript in a link reference element that is mishandled by linkref_addinindex in rcube_string_replacer.php.","categories":["Applications & CMS"],"product":"Roundcube Webmail","vendor":"Roundcube","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-35730","source_modified_at":"2025-10-21T23:35:31.104Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.1,"severity":"Medium","kev":{"listed":true,"date_added":"2023-06-22","due_date":"2023-07-13","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.3292,"percentile":0.9836,"score_date":"2026-10-23"},"published_at":"2020-12-28T19:37:08.000Z","modified_at":"2025-10-21T23:35:31.104Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2020-35730","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:35:31.104Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-35730","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://roundcube.net/news/2020/12/27/security-updates-1.4.10-1.3.16-and-1.2.13","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35730","source":"CISA KEV"},{"source":"CVE List","url":"https://roundcube.net/download/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://github.com/roundcube/roundcubemail/compare/1.4.9...1.4.10","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=978491","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://www.alexbirnberg.com/roundcube-xss.html","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.4.10","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.3.16","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://github.com/roundcube/roundcubemail/releases/tag/1.2.13","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HMLIZWKMTRCLU7KZLEQHELS4INXJ7X5Q/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCEU4BM5WGIDJWP6Z4PCH62ZMH57QYM2/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-35730","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"partial","assessed_at":"2025-02-04T20:21:48.700288Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:35:31.104Z","content_hash":"cbe5589debf1abe3eaa76d8170f530c65980d97e1073d1b4ed03717835e724cd"}}