CVE-2018-19573

Name: CVE-2018-19573
Creator: NVD / NIST
Published: 2019-07-10T16:15:10.807+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.96%

Last modified Jun 17, 2026

CVE-2018-19573 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.

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

0.96%

57.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 11.0.0, < 11.3.11
Gitlab	Gitlab	>= 11.4.0, < 11.4.8
Gitlab	Gitlab	>= 11.5.0, < 11.5.1

References

http://www.securityfocus.com/bid/109164Broken Link, Third Party Advisory, VDB Entry
https://about.gitlab.com/2018/11/28/security-release-gitlab-11-dot-5-dot-1-released/Broken Link, Release Notes, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-ce/issues/45906Issue Tracking, Vendor Advisory
http://www.securityfocus.com/bid/109164Broken Link, Third Party Advisory, VDB Entry
https://about.gitlab.com/2018/11/28/security-release-gitlab-11-dot-5-dot-1-released/Broken Link, Release Notes, Vendor Advisory
https://gitlab.com/gitlab-org/gitlab-ce/issues/45906Issue Tracking, Vendor Advisory

Timeline

Published: Jul 10, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19573?

GitLab CE/EE, versions 10.3 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, are vulnerable to an XSS vulnerability in Markdown fields via Mermaid.

How severe is CVE-2018-19573?

CVE-2018-19573 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19573?

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-2018-19573?

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

Scan your code now

Source: NVD / NIST