blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2021-38339

MEDIUM 6.1 CVSS 3.1
Published
September 10, 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 Simple Matted Thumbnails WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["PHP_SELF"] value in the ~/simple-matted-thumbnail.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.01.

Affected WordPress components

  • simple-matted-thumbnails Plugin · simple-matted-thumbnails
    Confirmed match Homeless
    From 1.01 (including) to 1.01 (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

  • Simple Matted Thumbnails Simple Matted Thumbnails — From 1.01 (including) to 1.01 (including)
  • devondev simple_matted_thumbnails — Up to and including 1.01

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/simple-matted-thumbnails/tags/1.01/simple-matted-thumbnail.php#L122 Exploit, Third Party Advisory
  • www.wordfence.com https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38339 Third Party Advisory
  • nvd.nist.gov Official NVD record