CVE-2023-5631Stored XSS vulnerability in Roundcube
Updated under an hour ago ()
Does this affect you?
It affects Roundcubemail and 3 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Oct 26, 2023; federal agencies had to remediate by Nov 16, 2023. Treat that date as your deadline.
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Free account, 1 product
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
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Added to CISA KEV Oct 26, 2023; federal remediation due Nov 16, 2023Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 75.87% (percentile 100)
- Assigned by
- ESET
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Roundcube Roundcubemail roundcube:roundcubemail (from the name) | from 1.6.0 before 1.6.3; from 1.5.0 before 1.5.4; from 1.4.0 before 1.5.14; 1.6.4 not affected; 1.5.5 not affected; 1.5.15 not affected | CNA record |
roundcube webmail roundcube:webmail | before 1.4.15; from 1.5.0 before 1.5.5; from 1.6.0 before 1.6.4 | NVD |
debian debian_linux debian:debian_linux | 10.0; 11.0; 12.0 | NVD |
fedoraproject fedora fedoraproject:fedora | 39 | NVD |
References
- https://github.com/roundcube/roundcubemail/commit/6ee6e7ae301e165e2b2cb703edf75552e5376613patch
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.4release-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.5release-notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.4.15release-notes
- https://github.com/roundcube/roundcubemail/issues/9168exploit, issue-tracking
- https://roundcube.net/news/2023/10/16/security-update-1.6.4-releasedrelease-notes
- https://github.com/roundcube/roundcubemail/commit/41756cc3331b495cc0b71886984474dc529dd31dpatch
- https://roundcube.net/news/2023/10/16/security-updates-1.5.5-and-1.4.15release-notes
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054079mailing-list, patch
- https://www.debian.org/security/2023/dsa-5531mailing-list
- https://lists.debian.org/debian-lts-announce/2023/10/msg00035.htmlmailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2023/11/01/1mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2023/11/01/3mailing-list, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LK67Q46OIEGJCRQUBHKLH3IIJTBNGGX4/mailing-list
- http://www.openwall.com/lists/oss-security/2023/11/17/2mailing-list, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-5631us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.