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RedhatCVE•added 2026/04/22 1:14 a.m.•1 views

CVE-2026-6755

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Mitigation bypass in the DOM: postMessage component...

6.5CVSS5.7AI score0.00023EPSS

Exploits0References5

Vulnrichment•added 2026/04/21 12:40 p.m.•1 views

CVE-2026-6755 Mitigation bypass in the DOM: postMessage component

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

5.8AI score0.00023EPSS

Exploits0References3

ATTACKERKB•added 2026/04/21 12:40 p.m.•0 views

CVE-2026-6755

Mitigation bypass in the DOM: postMessage component. This vulnerability was fixed in Firefox 150 and Thunderbird 150...

6.5CVSS5.8AI score0.00023EPSS

Exploits0References4

Positive Technologies•added 2026/04/21 12:0 a.m.•2 views

PT-2026-33941

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 150 Thunderbird versions prior to 150 Description A mitigation bypass exists in the DOM postMessage component. Recommendations Update to version 150 or later...

9.8CVSS5.1AI score0.00104EPSS

Exploits0References47

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