CVE-2011-10033WordPress Plugin is-human <= v1.4.2 Eval Injection RCE
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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.
- CVSS
- 9.3 CRITICAL (v4.0, CNA)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
- Weakness (CWE)
- CWE-95
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- May 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
is-human WordPress Plugin is-human WordPress Plugin is_human_wordpress_plugin:is_human_wordpress_plugin (from the name) | through 1.4.2 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.