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Sitecore 0-Day Vulnerability Let Attackers Execute Remote Code

A critical vulnerability (CVE-2025-27218) in Sitecore Experience Platform allows unauthenticated attackers to execute arbitrary code on unpatched systems. Discovered by Assetnote, it exploits insecure deserialization in versions 8.2-10.4. Sitecore recommends immediate upgrades to patch the flaw, while emphasizing the need for secure deserialization practices to mitigate risks of mass attacks and server compromise.

Source: cybersecuritynews.com –

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