Description
The SoapClient::__call method in ext/soap/soap.c in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 does not verify that __default_headers is an array, which allows remote attackers to execute arbitrary code by providing crafted serialized data with an unexpected data type, related to a "type confusion" issue.
Remediation
References
Related Vulnerabilities
Piwigo Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2017-10678)
WordPress Plugin WP Clone by WP Academy Cross-Site Scripting (2.1.1)
Apache Tomcat Permissions, Privileges, and Access Controls Vulnerability (CVE-2007-5342)
Moodle Permissions, Privileges, and Access Controls Vulnerability (CVE-2015-5264)