https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-28T19:46:54.272263+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2019-11739 CVE-2019-11739 2026-09-28T19:46:54.309191+00:00

Affected: Mozilla Thunderbird

Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.

 https://vulnerability.circl.lu/vuln/usn-4150-1 USN-4150-1 — thunderbird vulnerabilities 2026-09-28T19:46:54.309285+00:00

Affected: Ubuntu:16.04:LTS: thunderbird, Ubuntu:18.04:LTS: thunderbird

It was discovered that encrypted S/MIME parts in a multipart message can leak plaintext contents when included in a HTML reply or forward in some circumstances. If a user were tricked in to replying to or forwarding a specially crafted message, an attacker could potentially exploit this to obtain sensitive information. (CVE-2019-11739) Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to obtain sensitive information, conduct cross-site scripting (XSS) attack, scause a denial of service, or execute arbitrary code. (CVE-2019-11740, CVE-2019-11742, CVE-2019-11743, CVE-2019-11744, CVE-2019-11746, CVE-2019-11752)