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CVE-2026-26079

MEDIUM

4.7

Description

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.

CVE Details

CVSS v3.1 Score4.7

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published2/11/2026

Last Modified2/11/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-829

References

https://github.com/roundcube/roundcubemail/commit/1f4c3a5af5033747f9685a8a395dbd8228d19816(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/2b5625f1d2ef7e050fd1ae481b2a52dc35466447(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/53d75d5dfebef235a344d476b900c20c12d52b01(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/5a3315cce587e0be58335d11ff9a5571c90494a5(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/bf89cbaa5897d8ad62e8057d9a3f6babb90b7954(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/c15f5dbf093a497e19a749b20e7f8fb5a9c24cde(cve@mitre.org)

https://github.com/roundcube/roundcubemail/releases/tag/1.5.13(cve@mitre.org)

https://github.com/roundcube/roundcubemail/releases/tag/1.6.13(cve@mitre.org)

https://roundcube.net/news/2026/02/08/security-updates-1.6.13-and-1.5.13(cve@mitre.org)

IOC Correlations

No correlations recorded

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