Incorrect Regular Expression in Prototype JavaScript Framework - CVE-2020-27511
Published: February 2, 2023
Vulnerability identifier: #VU71773
CSH Severity: Low
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:Clear
CVE-ID: CVE-2020-27511
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Prototype Core Team
Affected software:
Prototype JavaScript Framework
Prototype JavaScript Framework
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 in the stripTags and unescapeHTML components. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
How to mitigate CVE-2020-27511
Install update from vendor's website.