Overview
CVE-2025-66090 identifies a DOM-Based Cross-Site Scripting (XSS) vulnerability affecting the SKT Skill Bar WordPress plugin. This flaw allows attackers to inject malicious scripts into web pages viewed by users, potentially leading to data theft, session hijacking, or defacement of the website. The vulnerability exists in versions 2.5 and earlier of the plugin.
Technical Details
The SKT Skill Bar plugin suffers from an Improper Neutralization of Input During Web Page Generation, specifically a DOM-Based XSS vulnerability. This means the injected script is executed in the user’s browser as a result of the way the plugin handles input and dynamically modifies the DOM (Document Object Model). Without proper sanitization or encoding of user-supplied input, an attacker can craft a malicious URL or input that, when processed by the plugin, injects arbitrary JavaScript code into the page.
This vulnerability is triggered when the plugin processes unsanitized user input within JavaScript code that manipulates the DOM. By crafting a specific input, an attacker can inject malicious JavaScript code that will be executed in the context of the user’s browser when they visit a page using the vulnerable SKT Skill Bar plugin.
CVSS Analysis
As the CVSS score isn’t publicly available, we can only make assumptions based on the nature of the vulnerability.
| Metric | Value |
|---|---|
| CVE ID | CVE-2025-66090 |
| Severity | N/A (Requires assessment) |
| CVSS Score | N/A (Requires assessment) |
| Vector String | N/A (Requires assessment) |
Disclaimer: This CVSS analysis is based on limited information and may change as further details become available.
Possible Impact
A successful XSS attack via CVE-2025-66090 can have several severe consequences:
- Data Theft: Attackers can steal sensitive information such as cookies, session tokens, and login credentials.
- Session Hijacking: By obtaining session tokens, attackers can impersonate legitimate users and gain unauthorized access to their accounts.
- Website Defacement: Malicious scripts can modify the content and appearance of the website, damaging its reputation and user trust.
- Redirection to Malicious Sites: Users can be redirected to phishing sites or websites hosting malware.
Mitigation and Patch Steps
To mitigate the risk of CVE-2025-66090, follow these steps:
- Update the Plugin: The most crucial step is to update the SKT Skill Bar plugin to the latest version as soon as a patch is released. Check the WordPress plugin repository or the developer’s website for updates.
- Disable the Plugin: If an update is not immediately available, temporarily disable the SKT Skill Bar plugin to prevent exploitation.
- Web Application Firewall (WAF): Implement a Web Application Firewall (WAF) that can filter out malicious requests and block XSS attacks.
- Input Sanitization: If you are a developer using this plugin’s code, ensure all user inputs are properly sanitized and encoded before being displayed on the page. Use appropriate escaping functions provided by WordPress.
