Description
The Blackhole for Bad Bots plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User-Agent HTTP header in all versions up to and including 3.8. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() when capturing bot data (which strips HTML tags but does not escape HTML entities like double quotes), then stores the data via update_option(). When an administrator views the Bad Bots log page, the stored data is output directly into HTML input value attributes (lines 75-83) without esc_attr() and into HTML span content without esc_html(). This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute when an administrator views the Blackhole Bad Bots admin page.
INFO
Published Date :
2026-03-26T03:37:28.864Z
Last Modified :
2026-04-08T17:13:36.396Z
Source :
Wordfence
AFFECTED PRODUCTS
The following products are affected by CVE-2026-4329 vulnerability.
| Vendors | Products |
|---|---|
| Specialk |
|
| Wordpress |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4329.
