Vulnerability identifier: #VU86640

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-1549

CWE-ID: CWE-451

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
Firefox for iOS
Mobile applications / Apps for mobile phones

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data. A remote attacker can use a malicious website to set a large custom cursor, portions of the which can overlap with the permission dialog, potentially resulting in user confusion and unexpected granted permissions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 100.0 - 122.0.1

Firefox ESR: 115.0 - 115.7.0, 102.0 - 102.15.1

Firefox for Android: 100.1.0 - 122.1.0

Firefox for iOS: 100.1 - 122.2

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External links
http://www.mozilla.org/security/advisories/mfsa2024-05/
http://www.mozilla.org/security/advisories/mfsa2024-06/

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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.