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Plugin · blackhole-bad-bots
Blackhole for Bad Bots
2 known vulnerabilities on record. Add your version above to see which ones affect you.
Mar 26, 2026Blackhole for Bad Bots: Stored Cross-Site ScriptingCVE-2026-4329 · affects up to 3.8 · reported by WordfenceHigh 7.2
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.
NVD recordplugins.trac.wordpress.orgplugins.trac.wordpress.org
Apr 4, 2022Blackhole for Bad Bots: Uses headers suchCVE-2022-1165 · fixed in 3.3.2 · reported by WPScanCritical 9.1
The Blackhole for Bad Bots WordPress plugin before 3.3.2 uses headers such as CF-CONNECTING-IP, CLIENT-IP etc to determine the IP address of requests hitting the blackhole URL, which allows them to be spoofed. This could result in blocking arbitrary IP addresses, such as legitimate/good search engine crawlers / bots. This could also be abused by competitors to cause damage related to visibility in search engines, can be used to bypass arbitrary blocks caused by this plugin, block any visitor or even the administrator and even more.
Versions are matched against the affected ranges published with each record. A plugin can ship a fix under its own numbering, so if something looks off, check the linked record. Want the whole site checked at once? Run the free website check.
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