#VU49338 Input validation error in PHP - CVE-2020-7071

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Main Vulnerability Database Vulnerabilities #VU49338

#VU49338 Input validation error in PHP - CVE-2020-7071

Published: January 7, 2021 / Updated: October 27, 2023


Vulnerability identifier: #VU49338
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-7071
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
PHP
Software vendor:
PHP Group

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of URL performed via the "FILTER_VALIDATE_URL" setting. A remote attacker can use the "@" characters in the URL to bypass implemented filter and force the application to accept arbitrary URL instead of the defined by the option.

Example:

http://evel.website@trusted.website


Remediation

Install updates from vendor's website.

External links