CVE-2026-54432

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Published 2026-07-14 · Modified 2026-07-14

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CVSS v3

4.7

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

4.7

Description

Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allows Stored Cross-Site Scripting (XSS). The issue occurs because the attachment MIME type is not properly escaped on the attachment-validation warning page.

Predictions

Exploit likelihood

57%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-54432 NameCVE-2026-54432 SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Debian Bugs1141495 Vulnerable and fixed packages The table below lists information on source packages. Source PackageReleaseVersionStatus roundcube (PTS)bullseye1.4.15+dfsg.1-1+deb11u4vulnerable bullseye…

CVE-2026-54432

Name	CVE-2026-54432
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1141495

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
roundcube (PTS)	bullseye	1.4.15+dfsg.1-1+deb11u4	vulnerable
	bullseye (security)	1.4.15+dfsg.1-1+deb11u9	vulnerable
	bookworm	1.6.5+dfsg-1+deb12u8	vulnerable
	bookworm (security)	1.6.5+dfsg-1+deb12u9	vulnerable
	trixie	1.6.15+dfsg-0+deb13u1	vulnerable
	trixie (security)	1.6.16+dfsg-0+deb13u1	vulnerable
	forky, sid	1.6.16+dfsg-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
roundcube	source	(unstable)	(unfixed)			1141495

Notes

https://github.com/roundcube/roundcubemail/commit/a3a4482cc9bd5569107e4393d32abb157cb2a568 (1.6.17)

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

https://github.com/roundcube/roundcubemail/commit/a3a4482cc9bd5569107e4393d32abb157cb2a568 (1.6.17)

OS impact

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Fixed	`1.6.17+dfsg-1`
forky	Fixed	`1.6.17+dfsg-1`
bullseye	Affected	—
bookworm	Affected	—

References

CWEs

CWE-79

Community-verified mitigations for this CVE will appear above when contributors publish them.

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