Unrated severityNVD Advisory· Published Sep 10, 2021· Updated May 2, 2025No known patch
Simple Matted Thumbnails <= 1.01 Reflected Cross-Site Scripting
No known patch is available for this vulnerability.
The affected plugin has been removed from the WordPress.org directory (reason: Security Issue), and no patched version is being distributed through the official directory. If you have the affected software installed, you should uninstall or replace it rather than wait for an update.
CVE-2021-38339
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <=1.01
- Simple Matted Thumbnails/Simple Matted Thumbnailsv5Range: 1.01
Patches
Vulnerability mechanics
References
2- plugins.trac.wordpress.org/browser/simple-matted-thumbnails/tags/1.01/simple-matted-thumbnail.phpmitrex_refsource_MISC
- www.wordfence.com/vulnerability-advisories/mitrex_refsource_MISC
News mentions
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