CVE-2023-5631
Stored XSS vulnerability in Roundcube
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | roundcube |
| Product | roundcubemail |
| Published | Oct 18, 2023 |
| Last Updated | Oct 21, 2025 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Roundcube / Roundcubemail
1.6.0 < 1.6.3 1.5.0 < 1.5.4 1.4.0 < 1.5.14
References
github.com: https://github.com/roundcube/roundcubemail/commit/6ee6e7ae301e165e2b2cb703edf75552e5376613 github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.6.4 github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.5.5 github.com: https://github.com/roundcube/roundcubemail/releases/tag/1.4.15 github.com: https://github.com/roundcube/roundcubemail/issues/9168 roundcube.net: https://roundcube.net/news/2023/10/16/security-update-1.6.4-released github.com: https://github.com/roundcube/roundcubemail/commit/41756cc3331b495cc0b71886984474dc529dd31d roundcube.net: https://roundcube.net/news/2023/10/16/security-updates-1.5.5-and-1.4.15 bugs.debian.org: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054079 debian.org: https://www.debian.org/security/2023/dsa-5531 lists.debian.org: https://lists.debian.org/debian-lts-announce/2023/10/msg00035.html openwall.com: http://www.openwall.com/lists/oss-security/2023/11/01/1 openwall.com: http://www.openwall.com/lists/oss-security/2023/11/01/3 lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/LK67Q46OIEGJCRQUBHKLH3IIJTBNGGX4/ openwall.com: http://www.openwall.com/lists/oss-security/2023/11/17/2 cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-5631
Credits
Matthieu Faou Denys Klymenko Aleksander Machniak