CVE-2021-21705: Incorrect URL validation in FILTER_VALIDATE_URL
PHP Group · PHP
Vendor fix available · Affected: PHP Group · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 81% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- PHP Group · PHPfrom 7.3.x before 7.3.29; from 7.4.x before 7.4.21; from 8.0.X before 8.0.8
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- PHP Group
- Published
- October 2021
CoverageNo articles yet
No CyberSIXT article names CVE-2021-21705 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.