Vulnerability identifier: #VU89547

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-4769

CWE-ID: CWE-209

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers
Firefox ESR
Client/Desktop applications / Web browsers
Firefox for Android
Mobile applications / Apps for mobile phones

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to browser issues different error messages for application/javascript responses and non-script responses when importing resources using Web Workers. A remote attacker can trick the victim to visit a specially crafted website and learn information cross-origin

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 100.0 - 125.0.3

Firefox ESR: 102.0 - 102.15.1, 115.0 - 115.10.0

Firefox for Android: 100.1.0 - 124.2.0

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External links
http://www.mozilla.org/en-US/security/advisories/mfsa2024-21/
http://www.mozilla.org/en-US/security/advisories/mfsa2024-22/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.