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Case File

CVE-2019-5420

CRITICAL · CVSS 9.8 EPSS 92.14% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-03-27 · 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
exploit remote code execution code execution

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

CVE
CVE-2019-5420
Severity
CRITICAL
CVSS
9.8
EPSS
92.14%

Original NVD Description

A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically generated development mode secret token. This secret token can be used in combination with other Rails internals to escalate to a remote code execution exploit.