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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-35544 Detail

Description

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to a fixed-position mitigation bypass via the use of !important.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af72f7c2596018662 MITRE
https://github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672923abaff8191c0 MITRE
https://github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c80049b9c4bcaea7 MITRE
https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 MITRE
https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 MITRE
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 MITRE
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14 MITRE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-669 Incorrect Resource Transfer Between Spheres MITRE  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-35544
NVD Published Date:
04/03/2026
NVD Last Modified:
04/03/2026
Source:
MITRE