CVE-2019-5471

Name: CVE-2019-5471
Creator: NVD / NIST
Published: 2019-09-09T18:15:10.653+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2019-5471 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. An input validation and output encoding issue was discovered in the GitLab email notification feature which could result in a persistent XSS. This was addressed in GitLab 12.1.2, 12.0.4, and 11.11.6.. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

An input validation and output encoding issue was discovered in the GitLab email notification feature which could result in a persistent XSS. This was addressed in GitLab 12.1.2, 12.0.4, and 11.11.6.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.79%

51.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 11.11.0, < 11.11.7
Gitlab	Gitlab	>= 12.0.0, < 12.0.4
Gitlab	Gitlab	>= 12.1.0, < 12.1.2

References

https://gitlab.com/gitlab-org/gitlab-ee/issues/11515Exploit, Vendor Advisory
https://hackerone.com/reports/496973Exploit, Third Party Advisory
https://about.gitlab.com/2019/07/29/security-release-gitlab-12-dot-1-dot-2-released/Broken Link, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-ee/issues/11515Exploit, Vendor Advisory
https://hackerone.com/reports/496973Exploit, Third Party Advisory

Timeline

Published: Sep 9, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5471?

An input validation and output encoding issue was discovered in the GitLab email notification feature which could result in a persistent XSS. This was addressed in GitLab 12.1.2, 12.0.4, and 11.11.6.

How severe is CVE-2019-5471?

CVE-2019-5471 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5471?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5471?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST