CVE-2025-0237
Medium
Description
The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Mozilla Firefox
PublishedJan 7, 2025
First seenJan 7, 2025
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- mozilla firefox128.6.0, 134.0 or later
- mozilla thunderbird128.6.0, 134.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 128.6.0, v < 134.0 | 128.6.0, 134.0 |
| mozilla thunderbird | v < 128.6.0, 129.0 ≤ v < 134.0 | 128.6.0, 134.0 |
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