CVE-2025-8029highCWE-80

CVE-2025-8029: high-severity vulnerability in Mozilla Thunderbird

javascript: URLs executed on object and embed tags

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21Vexday Risk Score

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

ssvc Trackcvss 8.1epss 0.4%
Thunderbird executed `javascript:` URLs when used in `object` and `embed` tags. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
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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