CVE-2025-13839
Stored XSS in LJUsers WordPress Plugin Allows Script Injection
Publication date: 2025-12-12
Last updated on: 2025-12-12
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wordpress | ljusers_plugin | 1.2.0 |
Helpful Resources
Exploitability
| 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
AI Powered Q&A
Can you explain this vulnerability to me?
The LJUsers plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the 'name' parameter of the 'ljuser' shortcode. This occurs because the plugin does not properly sanitize or escape user-supplied input. As a result, authenticated users with Contributor-level access or higher can inject malicious scripts into pages, which will execute whenever those pages are viewed.
How can this vulnerability impact me? :
This vulnerability allows attackers with Contributor-level access or higher to inject arbitrary scripts into web pages. These scripts can execute in the context of other users viewing the affected pages, potentially leading to theft of user credentials, session hijacking, defacement, or other malicious actions that compromise the security and integrity of the website and its users.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update the LJUsers plugin to a version later than 1.2.0 where the issue is fixed. Additionally, restrict Contributor-level access to trusted users only, and consider implementing input sanitization and output escaping measures on the 'name' parameter of the 'ljuser' shortcode if an update is not immediately possible.