CVE-2021-22242: XSS
Published Aug 25, 2021
·Updated
Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown
Affected Software
6 affected components
GitLab GitLab>=11.4.0<13.12.9
GitLab GitLab>=11.4.0<13.12.9
GitLab GitLab>=14.0.0<14.0.7
GitLab GitLab>=14.0.0<14.0.7
GitLab GitLab>=14.1.0<14.1.2
GitLab GitLab>=14.1.0<14.1.2
Event History
Aug 25, 2021
CVE Published
via MITRE·06:38 PM
Data Sourced
via MITRE·06:38 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2021-22242?
CVE-2021-22242 is classified as a medium severity vulnerability due to the potential for stored cross-site scripting attacks.
2
How do I fix CVE-2021-22242?
To fix CVE-2021-22242, you should upgrade GitLab to version 14.1.2, 14.0.7, or later versions.
3
Which versions of GitLab are affected by CVE-2021-22242?
CVE-2021-22242 affects GitLab CE/EE versions from 11.4.0 to 14.0.7.
4
What type of vulnerability is CVE-2021-22242?
CVE-2021-22242 is a stored cross-site scripting vulnerability stemming from insufficient input sanitization in Mermaid markdown.
5
Can CVE-2021-22242 allow for remote code execution?
No, CVE-2021-22242 is a cross-site scripting vulnerability and does not directly result in remote code execution.