CVE-2026-0608
Stored XSS in WordPress Head Meta Data Plugin Allows Script Injection
Publication date: 2026-01-20
Last updated on: 2026-01-20
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| head_meta_data | head_meta_data | to 20251118 (inc) |
| head_meta_data | head_meta_data | 20260105 |
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?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the Head Meta Data WordPress plugin. It occurs because the plugin does not properly sanitize and escape input in the 'head-meta-data' post meta field. Authenticated users with contributor level access or higher can inject malicious scripts into pages, which then execute whenever any user views those pages. [1]
How can this vulnerability impact me? :
The vulnerability allows attackers with contributor or higher access to inject arbitrary scripts into WordPress pages. This can lead to malicious script execution in users' browsers, potentially resulting in theft of user data, session hijacking, defacement, or other malicious actions that compromise site integrity and user security. [1]
What immediate steps should I take to mitigate this vulnerability?
Update the Head Meta Data WordPress plugin to version 20260105 or later, which includes enhanced sanitization of custom fields using WordPress's wp_kses() function with a defined whitelist of allowed HTML tags and attributes. This update prevents injection of malicious scripts through the 'head-meta-data' post meta field. Ensure your WordPress installation is at least version 4.7 and PHP version is 5.6.20 or higher as required by the plugin update. [1]