CVE-2025-5258
BaseFortify
Publication date: 2025-06-24
Last updated on: 2025-06-26
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
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?
CVE-2025-5258 is a Stored Cross-Site Scripting (XSS) vulnerability in the WordPress Conference Scheduler plugin (version 2.5.1 and earlier). It occurs because the plugin does not properly sanitize and escape the 'className' parameter, allowing authenticated users with Contributor-level access or higher to inject malicious scripts. These scripts are stored and executed whenever any user accesses the affected page, potentially compromising site security. [1, 2]
How can this vulnerability impact me? :
This vulnerability can allow attackers with Contributor-level access or above to inject malicious JavaScript code into pages managed by the Conference Scheduler plugin. When other users visit these pages, the injected scripts execute in their browsers, which can lead to session hijacking, unauthorized actions, data theft, or defacement of the website. This compromises the security and integrity of the WordPress site and its users. [1, 2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability is a stored Cross-Site Scripting (XSS) issue in the Conference Scheduler WordPress plugin versions up to 2.5.1. Detection involves checking if the vulnerable plugin version is installed and if the 'className' parameter can be exploited to inject scripts. You can detect the plugin version via WordPress admin or by querying the plugin files. To detect exploitation attempts, monitor HTTP requests for suspicious payloads in parameters related to 'className'. For example, you can use web server logs or a web application firewall (WAF) to search for requests containing script tags or typical XSS payloads targeting the Conference Scheduler plugin. Specific commands might include grepping web server logs for suspicious input patterns or using curl to test injection points. Example commands: 1) `grep -i 'className=.*<script' /var/log/apache2/access.log` 2) `curl -u user:pass -d "className=<script>alert(1)</script>" https://yourwordpresssite.com/wp-admin/admin.php?page=conference-scheduler` (adjust URL and authentication as needed). However, no explicit detection commands are provided in the resources. [1, 2]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to update the Conference Scheduler plugin to version 2.5.2 or later, which contains the fix for the stored XSS vulnerability. This update includes proper sanitization and escaping of the 'className' parameter to prevent script injection. If updating immediately is not possible, restrict Contributor-level and above users from accessing the plugin or disable the plugin temporarily to prevent exploitation. Additionally, monitor and sanitize inputs where possible and consider implementing a Web Application Firewall (WAF) to block malicious payloads targeting this vulnerability. [1, 2]