Security Advisory

CVE-2026-35540

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-03 03:47:51

Last updated 2026-04-03 12:52:38

Assigner mitre

State PUBLISHED

Description

An issue was discovered in Roundcube Webmail 1.6.0 before 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts.

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