CVE-2025-9560
BaseFortify
Publication date: 2025-10-11
Last updated on: 2025-10-14
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| extendthemes | colibri_page_builder | * |
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 Colibri Page Builder WordPress plugin, specifically in the colibri_newsletter shortcode. It occurs because the plugin does not properly sanitize or escape user-supplied attributes, allowing authenticated users with contributor-level access or higher to inject malicious scripts. These scripts then execute whenever any user views the affected page. [2]
How can this vulnerability impact me? :
An attacker with contributor-level access or above can inject malicious scripts into pages via the vulnerable shortcode. When other users visit these pages, the injected scripts execute in their browsers, potentially leading to unauthorized actions such as session hijacking, defacement, or theft of sensitive information. This compromises the security and integrity of the affected website and its users. [2]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by scanning WordPress sites for the presence of the Colibri Page Builder plugin version 1.0.334 or earlier and checking for usage of the colibri_newsletter shortcode with potentially malicious attributes. Since the vulnerability involves stored XSS via shortcode attributes, you can search the database or page content for suspicious scripts embedded in the shortcode. For example, you might run a database query to find instances of the shortcode with script tags or suspicious JavaScript code. A sample WP-CLI command to search posts for the shortcode could be: `wp db query "SELECT ID, post_content FROM wp_posts WHERE post_content LIKE '%[colibri_newsletter%script%'"`. Additionally, monitoring HTTP responses for injected scripts in pages using this shortcode can help detect exploitation. However, no specific detection commands are provided in the resources. [2]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to update the Colibri Page Builder plugin to version 1.0.335 or later, where the vulnerability has been fixed by sanitizing shortcode output using the `wp_kses_post()` function. This update ensures that only safe HTML tags and attributes are allowed in the shortcode content, preventing stored XSS attacks. Until the update is applied, restrict contributor-level access or higher to trusted users only, as the vulnerability requires authenticated contributor-level access or above to exploit. [2]