CVE-2024-5458

MEDIUM5.3EPSS 3.6%

Filter bypass in filter_var (FILTER_VALIDATE_URL)

Published: 6/9/2024Modified: 4/28/2026

Description

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, due to a code logic error, filtering functions such as filter_var when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs the function will result in invalid user information (username + password part of URLs) being treated as valid user information. This may lead to the downstream code accepting invalid URLs as valid and parsing them incorrectly.

Affected packages (7)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1MEDIUM5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References (9)