plugin

Captcha Vulnerabilities

3 known security issues reported for the Captcha WordPress plugin. Most recent disclosed Dec 19, 2017.

1 critical 2 medium

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Captcha 4.3.6 - 4.4.4 - Plugin Backdoor

critical

The Captcha plugin for WordPress contained a backdoor that injected SEO spam into unsuspecting users WordPress sites in version 4.3.6 to 4.4.4.

CVSS:
9.6
Affected:
4.3.6 – 4.4.4
Fixed in:
4.4.5
Disclosed:
Dec 19, 2017

Captcha < 4.3.0 - Reflected Cross-Site Scripting

medium

The Captcha plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘category’ parameter in versions before 4.3.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can succes...

CVSS:
6.1
Affected:
up to 4.3.0
Fixed in:
4.3.0
Disclosed:
Apr 12, 2017

Captcha <= 3.8.1 - Captcha Bypass

medium

The Captcha plugin for WordPress is vulnerable to captcha bypass in versions up to, and including, 3.8.1.

CVSS:
5.3
Affected:
up to 3.8.1
Fixed in:
3.8.2
Disclosed:
Aug 1, 2014

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