CVE-2021-38339

MediumCVSS 6.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
Simple Matted Thumbnails	Simple Matted Thumbnails	>= 1.01, <= 1.01

References

https://plugins.trac.wordpress.org/browser/simple-matted-thumbnails/tags/1.01/simple-matted-thumbnail.php#L122Exploit, Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38339Third Party Advisory
https://plugins.trac.wordpress.org/browser/simple-matted-thumbnails/tags/1.01/simple-matted-thumbnail.php#L122Exploit, Third Party Advisory
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38339Third Party Advisory

Timeline

Published: Sep 10, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-38346.1Integria IMS in its 5.0.92 version does not filter correctly some fields related to the login.php file. An attacker could exploit this vulne CVE-2021-383406.1The Wordpress Simple Shop WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the update_row parameter found in the ~/inclu CVE-2021-383416.1The WooCommerce Payment Gateway Per Category WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["P CVE-2021-383428.1The Nested Pages WordPress plugin <= 3.1.15 was vulnerable to Cross-Site Request Forgery via the `npBulkAction`s and `npBulkEdit` `admin_pos CVE-2021-383436.1The Nested Pages WordPress plugin <= 3.1.15 was vulnerable to an Open Redirect via the `page` POST parameter in the `npBulkActions`, `npBulk CVE-2021-383445.4The Brizy Page Builder plugin <= 2.3.11 for WordPress was vulnerable to stored XSS by lower-privileged users such as a subscribers. It was p CVE-2021-383456.5The Brizy Page Builder plugin <= 2.3.11 for WordPress used an incorrect authorization check that allowed any logged-in user accessing any en CVE-2021-383468.8The Brizy Page Builder plugin <= 2.3.11 for WordPress allowed authenticated users to upload executable files to a location of their choice u CVE-2021-383476.1The Custom Website Data WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the id parameter found in the ~/views/edit.php CVE-2021-383486.1The Advance Search WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the wpas_id parameter found in the ~/inc/admin/views CVE-2021-383496.1The Integration of Moneybird for WooCommerce WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the error_description para CVE-2021-38358.8Buffer overflow in usb device class. Zephyr versions >= v2.6.0 contain Heap-based Buffer Overflow (CWE-122). For more information, see https