CVE-2023-5631

unknown KEV

Published 2023-10-26 · Modified 2023-10-26

CVSS v3

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CVSS v2

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VIR risk

1.5

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.

CISA KEV

Vendor: Roundcube
Product: Webmail
Due date: 2023-11-16

Predictions

Exploit likelihood

99%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cisa-kev — 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://nvd.nist.gov/vuln/detail/CVE-2023-5631

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2023-5631

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2023-5631.html

Exploits

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	bookworm	fixed	`1.6.4+dfsg-1~deb12u1`
debian	bullseye	fixed	`1.4.15+dfsg.1-1~deb11u1`
debian	sid	fixed	`1.6.4+dfsg-1`
debian	trixie	fixed	`1.6.4+dfsg-1`

References

Verify integrity in audit chain (admin only). AS-IS.