Prototype pollution in Mozilla Firefox - CVE-2023-25731
Published: February 15, 2023
Vulnerability identifier: #VU72259
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-25731
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary JavaScrpit code on the target system.
The vulnerability exists due to URL previews in the network panel of developer tools improperly store URLs. A remote attacker can use query parameters to overwrite global objects in privileged code when rendering URLPreview and perform prototype pollution.
How to mitigate CVE-2023-25731
Install updates from vendor's website.