{"id":"CVE-2023-43770","aliases":["BIT-roundcube-2023-43770"],"url":"https://o3.security/vulnerability/CVE-2023-43770","summary":null,"details":"Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.","published":"2023-09-22T00:00:00Z","modified":"2026-10-21T02:30:44.761880596Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.58483,"percentile":0.99048,"asOf":"2026-09-15"},"cisaKev":null,"exploitsKnown":5,"affectedPackages":[],"fix":{"url":"https://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b","label":"roundcube/roundcubemail@e92ec20"},"references":[{"type":"WEB","url":"https://roundcube.net/news/2023/09/15/security-update-1.6.3-released"},{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43770"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/43xxx/CVE-2023-43770.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43770"},{"type":"FIX","url":"https://github.com/roundcube/roundcubemail/commit/e92ec206a886461245e1672d8530cc93c618a49b"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00024.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:30:44.761880596Z"}}