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Case File

CVE-2021-27903

CRITICAL · CVSS 9.8 EPSS 2.82% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-06-30 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-27903
Severity
CRITICAL
CVSS
9.8
EPSS
2.82%

Original NVD Description

An issue was discovered in Craft CMS before 3.6.7. In some circumstances, a potential Remote Code Execution vulnerability existed on sites that did not restrict administrative changes (if an attacker were somehow able to hijack an administrator's session).