Incorrect Regular Expression in UAParser.js - CVE-2022-25927
Published: March 23, 2023 / Updated: May 21, 2026
Vulnerability identifier: #VU73969
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-25927
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Faisal Salman
Affected software:
UAParser.js
UAParser.js
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation passed via the trim() function. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
How to mitigate CVE-2022-25927
Install update from vendor's website.