Vulnerability Monitor

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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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.4, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required requiring only low-level privileges . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 1 product from gitlab organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-07-10T16:15:10.807

Last Modified

2024-11-21T03:58:12.407

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.4 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

6.8

Impact Score

2.9

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gitlab	gitlab	< 11.3.11	Yes
Application	gitlab	gitlab	< 11.3.11	Yes
Application	gitlab	gitlab	< 11.4.8	Yes
Application	gitlab	gitlab	< 11.4.8	Yes
Application	gitlab	gitlab	< 11.5.1	Yes
Application	gitlab	gitlab	< 11.5.1	Yes

References

http://www.securityfocus.com/bid/109164 Broken Link, Third Party Advisory, VDB Entry ([email protected])
https://about.gitlab.com/2018/11/28/security-release-gitlab-11-dot-5-dot-1-released/ Broken Link, Release Notes, Vendor Advisory ([email protected])
https://gitlab.com/gitlab-org/gitlab-ce/issues/45906 Issue Tracking, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/109164 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://about.gitlab.com/2018/11/28/security-release-gitlab-11-dot-5-dot-1-released/ Broken Link, Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://gitlab.com/gitlab-org/gitlab-ce/issues/45906 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For gitlab's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.