CVE-2025-8029
High
Description
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.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Mozilla Firefox
PublishedJul 22, 2025
First seenJul 22, 2025
Weakness typeCWE-80CWE-80
How to fix
Update
- mozilla firefox128.13.0, 141.0, 140.1.0 or later
- mozilla thunderbird128.13.0, 141.0, 140.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 128.13.0, v < 141.0, 140.0 ≤ v < 140.1.0 | 128.13.0, 141.0, 140.1.0 |
| mozilla thunderbird | v < 128.13.0, v < 141.0, 140.0 ≤ v < 140.1.0 | 128.13.0, 141.0, 140.1.0 |
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