CVE-2020-13262

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

Client-Side code injection through Mermaid markup in GitLab CE/EE 12.9 and later through 13.0.1 allows a specially crafted Mermaid payload to PUT requests on behalf of other users via clicking on a link

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-74

Affected software

Vendor	Product	Versions
GitLab	GitLab	>=12.9, <12.9.8; >=12.10, <12.10.7; >=13.0, <13.0.1

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13262.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/211949Broken Link
https://hackerone.com/reports/824689Permissions Required
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13262.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/211949Broken Link
https://hackerone.com/reports/824689Permissions Required

Timeline

Published: Jun 19, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-132638.8An authorization issue relating to project maintainer impersonation was identified in GitLab EE 9.5 and later through 13.0.1 that could allo CVE-2020-132645.3Kubernetes cluster token disclosure in GitLab CE/EE 10.3 and later through 13.0.1 allows other group maintainers to view Kubernetes cluster CVE-2020-132655.3User email verification bypass in GitLab CE/EE 12.5 and later through 13.0.1 allows user to bypass email verification CVE-2020-132664.3Insecure authorization in Project Deploy Keys in GitLab CE/EE 12.8 and later through 13.0.1 allows users to update permissions of other user CVE-2020-132676.1A Stored Cross-Site Scripting vulnerability allowed the execution on Javascript payloads on the Metrics Dashboard in GitLab CE/EE 12.8 and l CVE-2020-132685.3A specially crafted request could be used to confirm the existence of files hosted on object storage services, without disclosing their cont CVE-2020-132696.1A Reflected Cross-Site Scripting vulnerability allowed the execution of arbitrary Javascript code on the Static Site Editor in GitLab CE/EE CVE-2020-13276.1A spoofing vulnerability exists in Microsoft Azure DevOps Server when it fails to properly handle web requests, aka 'Azure DevOps Server HTM CVE-2020-132708.8Missing permission check on fork relation creation in GitLab CE/EE 11.3 and later through 13.0.1 allows guest users to create a fork relatio CVE-2020-132716.1A Stored Cross-Site Scripting vulnerability allowed the execution of arbitrary Javascript code in the blobs API in all previous GitLab CE/EE CVE-2020-132728.8OAuth flow missing verification checks CE/EE 12.3 and later through 13.0.1 allows unverified user to use OAuth authorization code flow CVE-2020-132737.5A Denial of Service vulnerability allowed exhausting the system resources in GitLab CE/EE 12.0 and later through 13.0.1