#VU91107 Input validation error in PHP - CVE-2024-5458

Vulnerability identifier: #VU91107

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-5458

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when parsing URL. A remote attacker can bypass the filter_var FILTER_VALIDATE_URL checks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PHP: 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7

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External links
https://github.com/php/php-src/security/advisories/GHSA-w8qr-v226-r27w

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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.