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Vulnerability record · CVE-2020-7071 · published 15 February 2021

CVE-2020-7071: Php improper input validation vulnerability

Php · Php

In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14 and 8.0.0, when validating URL with functions like filter_var($url, FILTER_VALIDATE_URL), PHP will accept an URL with invalid password as valid URL. This may lead to functions that rely on URL being valid to mis-parse the URL and produce wrong data as components of the URL.

5.3 CVSS 3.1 Medium EPSS 2.9% · top 13.6% CWE-20 · Improper input validation
5.3CVSS 3.1 base score, v2 5.0
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14 and 8.0.0, when validating URL with functions like filter_var($url, FILTER_VALIDATE_URL), PHP will accept an URL with invalid password as valid URL. This may lead to functions that rely on URL being valid to mis-parse the URL and produce wrong data as components of the URL.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.php.net/bug.php?id=77423 ExploitIssue TrackingVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202105-23 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210312-0005/ Vendor Advisory
https://www.debian.org/security/2021/dsa-4856 Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory
https://www.tenable.com/security/tns-2021-14 Third Party Advisory
https://bugs.php.net/bug.php?id=77423 ExploitIssue TrackingVendor Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202105-23 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210312-0005/ Vendor Advisory
https://www.debian.org/security/2021/dsa-4856 Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory
https://www.tenable.com/security/tns-2021-14 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-7071), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.