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Vulnerability DatabaseCVE-2025-8399
CVE-2025-8399:
WordPress vulnerability analysis and mitigation
Overview
The Mmm Unity Loader plugin for WordPress (versions up to and including 1.0) contains a Stored Cross-Site Scripting vulnerability identified as CVE-2025-8399. The vulnerability was discovered and reported by Wordfence, with the disclosure date being August 2, 2025. The plugin has been temporarily closed as of July 31, 2025, pending a full security review (NVD, WordPress Plugin).
Technical details
The vulnerability exists due to insufficient input sanitization and output escaping of the 'attributes' parameter in the plugin. The issue has been assigned a CVSS v3.1 base score of 6.4 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation) (NVD).
Impact
When exploited, this vulnerability allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts into pages. These malicious scripts will execute whenever a user accesses the compromised page, potentially leading to data theft or session hijacking (NVD).
Mitigation and workarounds
As of July 31, 2025, the plugin has been temporarily closed and is not available for download pending a full security review. Users are advised to disable and remove the plugin until a patched version becomes available (WordPress Plugin).
Additional resources
Source: This report was generated using AI
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