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CVE-2021-38320

MEDIUM 6.1 CVSS 3.1
Published
September 9, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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.

Affected WordPress components

  • simplesamlphp-authentication Plugin · simplesamlphp-authentication
    Confirmed match Homeless
    From 0.7.0 (including) to 0.7.0 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • simpleSAMLphp Authentication simpleSAMLphp Authentication — From 0.7.0 (including) to 0.7.0 (including)
  • simplesamlphp_authentication_project simplesamlphp_authentication — Up to and including 0.7.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/simplesamlphp-authentication/tags/0.7.0/simplesamlphp-authentication.php#L307 Exploit, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38320 Third Party Advisory
  • nvd.nist.gov Official NVD record