What’s Vulnerable › Vulnerabilities

CVE-2019-16109

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-09-08 · updated 2026-06-17

Description

An issue was discovered in Plataformatec Devise before 4.7.1. It confirms accounts upon receiving a request with a blank confirmation_token, if a database record has a blank value in the confirmation_token column. (However, there is no scenario within Devise itself in which such database records would exist.)

Affected products

• Plataformatec Devise ruby gem: before 4.7.1 — fixed in 4.7.1

How to fix

Upgrade to a fixed version: Plataformatec Devise ruby gem 4.7.1. Check the vendor advisory for mitigations.

References

• https://github.com/plataformatec/devise/compare/v4.7.0...v4.7.1
• https://github.com/plataformatec/devise/issues/5071
• https://github.com/plataformatec/devise/pull/5132
• https://github.com/plataformatec/devise/compare/v4.7.0...v4.7.1
• https://github.com/plataformatec/devise/issues/5071
• https://github.com/plataformatec/devise/pull/5132

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