CVE-2023-5631

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.

Published: Oct 18, 2023
Updated: Nov 4, 2025
CVE: CVE-2023-5631
Severity: Medium
Exploit:

CVSS v3:

Severity: Medium
Score: 6.1
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWEs:

CWE-79

OWASP TOP 10:

A7 - Cross-Site Scripting (XSS)

Affected Software
References

Software	From	Fixed in
roundcube / webmail	1.6.0	1.6.4
roundcube / webmail	1.5.0	1.5.5
roundcube / webmail	-	1.4.15
debian / debian_linux	11.0	11.0.x
debian / debian_linux	12.0	12.0.x
debian / debian_linux	10.0	10.0.x
fedoraproject / fedora	39	39.x

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/package-announce@lists.fedoraproject.org/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.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-5631
https://www.debian.org/security/2023/dsa-5531

Vulnerability Database

CVE-2023-5631

Deep Security Visibility Without the Complexity