CVE-2025-8199
Unknown Unknown - Not Provided

Stored XSS in MarqueeAddons WordPress Plugin Testimonial Widget

Publication date: 2025-12-13

Last updated on: 2025-12-13

Assigner: Wordfence

Description
The MarqueeAddons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Testimonial Marquee widget in all versions up to, and including, 2.4.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Meta Information

Published
2025-12-13
Last Modified
2025-12-13
Generated
2026-07-09
AI Q&A
2025-12-13
EPSS Evaluated
2026-07-08
NVD
CVE-2025-8199

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
marqueeaddons wordpress_plugin *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Mitigation Strategies

To mitigate this vulnerability, immediately update the MarqueeAddons plugin for WordPress to a version later than 2.4.3 where the vulnerability is fixed. Additionally, restrict contributor-level access and above to trusted users only, as the vulnerability requires authenticated contributor-level access. Monitor and sanitize user inputs in the Testimonial Marquee widget to prevent stored cross-site scripting attacks.

Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the MarqueeAddons WordPress plugin, specifically in the Testimonial Marquee widget. It occurs because the plugin does not properly sanitize or escape user-supplied input, allowing authenticated users with contributor-level access or higher to inject malicious scripts that are stored and executed when other users view the affected pages.

Impact Analysis

An attacker with contributor-level access or higher can exploit this vulnerability to inject malicious scripts into pages. These scripts execute in the browsers of users who visit the infected pages, potentially leading to unauthorized actions such as stealing session tokens, defacing content, or performing actions on behalf of the user without their consent.

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