In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.

Related CVEs

CVE-2021-21705

Key Information

GHSA ID

GHSA-rxcr-7xjm-f9c9

Published

May 24, 2022 7:16 PM

Last Modified

September 30, 2022 12:00 AM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 5, 2025 6:26 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.