CVE-2020-8166

4.3 MEDIUM

Published: July 02, 2020 Modified: April 28, 2026

Description

A CSRF forgery vulnerability exists in rails < 5.2.5, rails < 6.0.4 that makes it possible for an attacker to, given a global CSRF token such as the one present in the authenticity_token meta tag, forge a per-form CSRF token.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://groups.google.com/g/rubyonrails-security/c/NOjKiGeXUgw

Source: support@hackerone.com

Mailing List Patch Third Party Advisory

https://hackerone.com/reports/732415

Source: support@hackerone.com

Exploit Third Party Advisory

https://www.debian.org/security/2020/dsa-4766

Source: support@hackerone.com

Third Party Advisory

https://groups.google.com/g/rubyonrails-security/c/NOjKiGeXUgw

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Patch Third Party Advisory

https://hackerone.com/reports/732415

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit Third Party Advisory

https://www.debian.org/security/2020/dsa-4766

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://hackerone.com/reports/732415

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Exploit Third Party Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score

4.3 / 10.0

EPSS (Exploit Probability)

0.4%

63th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-352 CWE-352

Affected Vendors

rubyonrails debian

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