Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.2 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to achieve stored cross-site scripting by exploiting GitLab Flavored Markdown.
What this means
In plain English
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.2 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to achieve stored cross-site scripting by exploiting GitLab Flavored Markdown. Cross-site scripting can run attacker-controlled script in a victim's browser within the affected application's trust boundary.
Vulnerable items
- GitLab — GitLab is a software-development platform that hosts source code and CI/CD workflows.
Recommended action
Primary action: update to a vendor-listed fixed release: 18.5.5, 18.6.3, 18.7.1.
Rewritten locally from the scraped official advisory data above; no generative API is used. The vendor advisory is authoritative.
- GitLab 18.2.2 before 18.5.5
- GitLab 18.6 before 18.6.3
- GitLab 18.7 before 18.7.1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 18.5.5
- 18.6.3
- 18.7.1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 18.5.5, 18.6.3, 18.7.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Discussion(0)
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