CVE-2025-26591
BaseFortify
Publication date: 2025-07-04
Last updated on: 2026-04-23
Assigner: Patchstack
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?
This vulnerability is a Stored Cross-Site Scripting (XSS) issue in the WordPress WP fancybox plugin versions up to 1.0.4. It allows a malicious user with Contributor privileges to inject and execute malicious scripts, such as redirects or advertisements, on websites using the affected plugin when visitors access the site. [1]
How can this vulnerability impact me? :
The vulnerability can lead to malicious scripts running on your website, potentially causing unwanted redirects, displaying unauthorized advertisements, or executing other harmful HTML payloads. This can harm your site's visitors and damage your website's reputation. Exploitation requires Contributor-level access, and there is currently no official patch available. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection of this vulnerability involves monitoring for malicious script injections or unusual HTML payloads in the web pages generated by the WP fancybox plugin. Since plugin-based malware scanners may be unreliable, it is recommended to perform manual inspection of user inputs and stored content for suspicious scripts. Network monitoring tools can be used to detect unexpected redirects or script executions originating from the affected plugin. Specific commands are not provided in the available resources. [1]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include applying virtual patching (vPatching) offered by Patchstack, which automatically protects sites even without an official patch. Additionally, restricting the privilege level to prevent untrusted users from having 'Contributor' access can reduce exploitation risk. If the site is compromised, seek professional incident response or assistance from your hosting provider. Monitoring and limiting user input that can be stored and rendered by the plugin is also advised. [1]