CVE-2019-5420

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-77 CWE-330

Affected software

No affected versions have been published.

Timeline

Published: Mar 27, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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