What the vulnerability does
01Description
The Quick Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Quick Testimonials versions 2.1 and earlier contain a cross-site scripting vulnerability that allows high-privilege users to inject malicious scripts affecting other users or site functionality. The vulnerability requires high attack complexity and high privileges to exploit. While the scope is changed, the confidentiality and integrity impacts are limited.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
A privileged user could inject scripts affecting other users' sessions or site behavior, potentially compromising trust or data.
Conditions required to exploit
05Prerequisites
Attacker must have high-level site privileges (e.g., admin or editor role) and the attack complexity is high.
Key dates
06Disclosure timeline
December 13, 2025
CVE published
April 8, 2026
Record updated
