Description
The Incutio XML-RPC (IXR) Library, as used in WordPress before 3.9.2 and Drupal 6.x before 6.33 and 7.x before 7.31, permits entity declarations without considering recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.
Remediation
References
Related Vulnerabilities
WordPress Plugin Import XML and RSS Feeds Server-Side Request Forgery (2.0.2)
Craft CMS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2026-33161)
WordPress Plugin Processing Embed 'pluginurl' Parameter Cross-Site Scripting (0.5)
Pega Infinity Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2022-35656)