CVE-2011-10033
WordPress Plugin is-human <= v1.4.2 Eval Injection RCE
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 15, 2025
- Updated
- May 15, 2026
- Reserved
- Oct 10, 2025
Description
The WordPress plugin is-human <= v1.4.2 contains an eval injection vulnerability in /is-human/engine.php that can be triggered via the 'type' parameter when the 'action' parameter is set to 'log-reset'. The root cause is unsafe use of eval() on user-controlled input, which can lead to execution of attacker-supplied PHP and OS commands. This may result in arbitrary code execution as the webserver user, site compromise, or data exfiltration. The is-human plugin was made defunct in June 2008 and is no longer available for download. This vulnerability was exploited in the wild in March 2012.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Affected Products
| Product | Versions |
|---|---|
is-human WordPress Pluginis-human WordPress Plugin |
|
References
- https://wordpress.org/plugins/is-human/product
- https://www.exploit-db.com/exploits/17299exploit
- https://web.archive.org/web/20120115212202/http://blog.spiderlabs.com/2012/01/honeypot-alert-is-human-wordpress-plugin-remote-command-execution-attack-detected.htmltechnical-description
- https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/honeypot-alert-more-wordpress-is_human-plugin-remote-command-injection-attack-detected/technical-description
- https://www.vulncheck.com/advisories/wordpress-plugin-is-human-eval-injection-rcethird-party-advisory
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