CVE-2024-9393

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.08%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1918301 permissions required
https://www.mozilla.org/security/advisories/mfsa2024-46/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-47/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-48/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-49/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2024-50/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2024-9393?
CVE-2024-9393 has been scored as a high severity vulnerability.
How to fix CVE-2024-9393?
To fix CVE-2024-9393, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-9393 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-9393 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-9393?
CVE-2024-9393 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Firefox ESR, Mozilla Thunderbird, Mozilla Thunderbird.
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