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CISA Known Exploited Vulnerability

This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.

CVE

CVE-2021-42237

9.8

CVSScritical

Exploitable remotely over the internet · no authentication required.

Description

Sitecore XP 7.5 Initial Release to Sitecore XP 8.2 Update-7 is vulnerable to an insecure deserialization attack where it is possible to achieve remote command execution on the machine. No authentication or special configuration is required to exploit this vulnerability.

Attack Vector

Network

Privileges Req.

None

User Interaction

None

Updated Oct 24, 2026View on NVD →

S4E scanner

criticalProduct Based Web Vulnerabilities~10 seconds

CVE-2021-42237 Scanner

CVE-2021-42237 scanner - Remote Code Execution (RCE) vulnerability in Sitecore XP

Used 2.8k times · 3.4k assets checked · domain, ipv4, subdomain

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