CVE-2024-9393
High
Description
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://pdf.js` origin. This could allow them to access cross-origin PDF content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Mozilla Firefox
PublishedOct 1, 2024
First seenOct 1, 2024
Weakness typeCWE-346CWE-346
How to fix
Update
- mozilla firefox131.0 or later
- mozilla firefox_esr115.16.0, 128.3.0 or later
- mozilla thunderbird128.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 131.0 | 131.0 |
| mozilla firefox_esr | v < 115.16.0, 116.0 ≤ v < 128.3.0 | 115.16.0, 128.3.0 |
| mozilla thunderbird | v < 128.3, 129.0 | 128.3 |
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