CVE-2026-74978highCWE-1021

CVE-2026-74978: high-severity vulnerability in Mozilla Firefox

Clickjacking issue in the Widget component

Published

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.1epss 0.4%
Clickjacking issue in the Widget component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected products
Mozilla · FirefoxMozilla · Thunderbird
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