Description
The Extbase Framework in TYPO3 4.6.x through 4.6.6, 4.7, and 6.0 unserializes untrusted data, which allows remote attackers to unserialize arbitrary objects and possibly execute arbitrary code via vectors related to "a missing signature (HMAC) for a request argument."
Remediation
References
Related Vulnerabilities
Joomla Improper Check for Unusual or Exceptional Conditions Vulnerability (CVE-2021-26038)
WordPress Plugin Mingle Forum Multiple Cross-Site Scripting Vulnerabilities (1.0.33)
WordPress 4.5.x Multiple Vulnerabilities (4.5 - 4.5.8)
WordPress Plugin Timetable and Event Schedule by MotoPress Cross-Site Request Forgery (2.4.1)