CVE-2023-5631 KEV
6.1
MEDIUM · CVSS 3.1 · EPSS 75.9% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2023-11-16.
Description
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.
Scoring
| CVSS | 6.1 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 75.87% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | yes — remediate by 2023-11-16 |
| Public exploit | none known |
| Published | 2023-10-18 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability |
|---|---|
| Added | 2023-10-26 |
| Due | 2023-11-16 |
| Vendor / product | Roundcube / Webmail |
| Ransomware use | none reported |
Affected (3)
| Vendor | Product |
|---|---|
| debian | debian linux |
| fedoraproject | fedora |
| roundcube | webmail |
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/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.debian.org/security/2023/dsa-5531
- 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
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