RLSA-2025:13676 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Large branch table could lead to truncated instruction CVE-2025-8028 firefox: thunderbird: Memory safety bugs CVE-2025-8035 firefox: thunderbird: Incorrect URL stripping in CSP reports CVE-2025-80...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

firefox: thunderbird: XSLT documents could bypass CSP

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: XSLT document loading incorrectly propagates the source document which bypassed its CSP...

Mozilla: Cross-origin XSLT Documents would have inherited the parent's permissions

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue of a cross-origin iframe referencing an XSLT document inheriting the parent domain's permissions such as microphone or camera access...