Description
The SPL component in PHP before 5.4.30 and 5.5.x before 5.5.14 incorrectly anticipates that certain data structures will have the array data type after unserialization, which allows remote attackers to execute arbitrary code via a crafted string that triggers use of a Hashtable destructor, related to "type confusion" issues in (1) ArrayObject and (2) SPLObjectStorage.
Remediation
References
Related Vulnerabilities
WordPress Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2011-3126)
WordPress Plugin Candidate Application Form Arbitrary File Disclosure (1.6)
WordPress Plugin Advance Menu Manager Security Bypass (3.0)
WordPress Plugin Sunshine Photo Cart Cross-Site Request Forgery (2.8.28)