CVE-2023-5631
MEDIUMCISA KEVEPSS 99th pctlDescription
Roundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 99% of all known CVEs.
Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
Roundcube Webmail contains a persistent cross-site scripting (XSS) vulnerability that allows a remote attacker to run malicious JavaScript code.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Remediation due: 2023-11-16
References
- http://www.openwall.com/lists/oss-security/2023/11/01/1
- http://www.openwall.com/lists/oss-security/2023/11/01/3
- http://www.openwall.com/lists/oss-security/2023/11/17/2
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054079
- https://github.com/roundcube/roundcubemail/commit/41756cc3331b495cc0b71886984474dc529dd31d
- https://github.com/roundcube/roundcubemail/commit/6ee6e7ae301e165e2b2cb703edf75552e5376613
- https://github.com/roundcube/roundcubemail/issues/9168
- https://github.com/roundcube/roundcubemail/releases/tag/1.4.15
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.5
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.4
- https://lists.debian.org/debian-lts-announce/2023/10/msg00035.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LK67Q46OIEGJCRQUBHKLH3IIJTBNGGX4/
- https://roundcube.net/news/2023/10/16/security-update-1.6.4-released
- https://roundcube.net/news/2023/10/16/security-updates-1.5.5-and-1.4.15
- https://www.debian.org/security/2023/dsa-5531
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-5631
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-30.