Researchers Warn of Sitecore Exploit Chain Linking Cache Poisoning and Remote Code Execution

Three new security vulnerabilities have been disclosed in the Sitecore Experience Platform that could be exploited to achieve information disclosure and remote code execution. The flaws, per watchTowr Labs, are listed below - CVE-2025-53693 - HTML cache poisoning through unsafe reflections CVE-2025-53691 - Remote code execution (RCE) through insecure deserialization CVE-2025-53694 -