Vulnerabilities

CVSS

5.3 Medium

Vector

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

Risk score

42.4

Published

2026-04-03

Status

Analyzed

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.

Weaknesses

CWE-669

Coverage 1

vulnerability

Multiples vulnérabilités dans Roundcube (19 mars 2026)

Multiple vulnerabilities have been discovered in Roundcube Webmail, impacting versions 1.5.x through 1.5.14, 1.6.x through 1.6.14, and 1.7.x through 1.7-rc5. These flaws include data confidentiality breaches, SSRF attack…

CERT-FR · Mar 19, 2026 Medium

CVE-2026-35537CVE-2026-35544CVE-2026-35545roundcubevulnerabilitywebmail

All articles mentioning it

Advisories and references

• github.com/roundcube/roundcubemail/commit/099009b9c8e1d3c636fb9a5af7...
• github.com/roundcube/roundcubemail/commit/226811a1c974271dbedca72672...
• github.com/roundcube/roundcubemail/commit/57dec0c127b98e0c8e3b9c26c8...
• github.com/roundcube/roundcubemail/releases/tag/1.5.14
• github.com/roundcube/roundcubemail/releases/tag/1.6.14
• github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
• roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14