How severe is CVE-2019-16109?

CVE-2019-16109 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-16109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16109?

CVE-2019-16109 affects Plataformatec Devise. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-16109 published?

CVE-2019-16109 was published on 2019-09-08 and last updated on 2026-06-17.

CVE-2019-16109

CVE-2019-16109 is a medium-severity vulnerability in Plataformatec Devise with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Plataformatec Devise
Published: 2019-09-08
Last modified: 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.)

Frequently asked questions

What is CVE-2019-16109?: 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.)
How severe is CVE-2019-16109?: CVE-2019-16109 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-16109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16109?: CVE-2019-16109 affects Plataformatec Devise. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-16109 published?: CVE-2019-16109 was published on 2019-09-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:plataformatec:devise:*:*:*:*:*:*:*:*

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