CVE-2021-38320

Public Exploit

simpleSAMLphp Authentication <= 0.7.0 Reflected Cross-Site Scripting

Description

The simpleSAMLphp Authentication WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["PHP_SELF"] value in the ~/simplesamlphp-authentication.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.7.0.

Remediation

Solution:

Uninstall plugin from WordPress site.

References

Link	Tags
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38320	third party advisory
https://plugins.trac.wordpress.org/browser/simplesamlphp-authentication/tags/0.7.0/simplesamlphp-authentication.php#L307	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-38320?: CVE-2021-38320 has been scored as a medium severity vulnerability.
How to fix CVE-2021-38320?: To fix CVE-2021-38320: Uninstall plugin from WordPress site.
Is CVE-2021-38320 being actively exploited in the wild?: It is possible that CVE-2021-38320 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-38320?: CVE-2021-38320 affects simpleSAMLphp Authentication simpleSAMLphp Authentication.

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Description

Remediation

Category

CWE-79 – Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

Frequently Asked Questions