Eval Injection Vulnerability in is-human Plugin for WordPress by an Unknown Vendor
CVE-2011-10033

9.3CRITICAL

Key Information:

Vendor

WordPress
Status
Is-human WordPress Plugin
Vendor
CVE Published:
15 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2011-10033?

The is-human plugin for WordPress, specifically versions up to 1.4.2, is susceptible to an eval injection vulnerability due to unsafe handling of user input in the 'type' parameter when 'action' is set to 'log-reset'. This flaw allows an attacker to execute arbitrary PHP and operating system commands. Since the plugin has been defunct since June 2008, it poses significant risk to any installations still using it. In March 2012, instances of this vulnerability were reported as actively exploited, indicating a pressing need for users to assess their usage of this outdated plugin.

Affected Version(s)

is-human WordPress Plugin * <= 1.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2011-10033 - Proof of Concept

References

https://wordpress.org/plugins/is-human/
product
https://www.exploit-db.com/exploits/17299
exploit
https://web.archive.org/web/20120115212202/http://blog.sp...
technical-description

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

neworder
JSON
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CVE-2011-10033 : Eval Injection Vulnerability in is-human Plugin for WordPress by an Unknown Vendor