CVE-2021-38320

MEDIUM 6.1CVE-2021-38320 · Published 09/09/2021 · updated 17/06/2026

In short

CVE-2021-38320 is a MEDIUM (CVSS 6.1) vulnerability affecting simplesamlphp authentication (simplesamlphp authentication project).
Chance of exploitation in the next 30 days (EPSS): 0.97%, higher than 62.1% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
simplesamlphp authentication simplesamlphp_authentication_project	`≤ 0.7.0`	No fix yet

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.

References

plugins.trac.wordpress.org/browser/simplesamlphp-authentication/tags/0.7.0/simplesamlphp-authentication.php · Exploit
wordfence.com/vulnerability-advisories · Third Party Advisory

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