CVE-2019-6784

Name: CVE-2019-6784
Creator: NVD / NIST
Published: 2019-09-09T20:15:11.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2019-6784 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

An issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It allows XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.05%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	< 11.5.8
Gitlab	Gitlab	>= 11.6.0, < 11.6.6
Gitlab	Gitlab	>= 11.7.0, < 11.7.1

References

https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released/Release Notes, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-ce/issues/54416Exploit, Issue Tracking, Third Party Advisory
https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released/Release Notes, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-ce/issues/54416Exploit, Issue Tracking, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2019-6784?

How severe is CVE-2019-6784?

CVE-2019-6784 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2019-6784?

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-2019-6784?

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

Scan your code now

Source: NVD / NIST