CVE-2018-12606 Cross-site scripting in n/a
Persistent XSS in GitLab wiki allows attackers to execute scripts via markdown, potentially leading to session hijacking or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-12606?
CVE-2018-12606 is a medium-severity cross-site scripting vulnerability in Gitlab Gitlab, published on 3 Aug 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in GitLab Community Edition and Enterprise Edition before 10.7.6, 10.8.x before 10.8.5, and 11.x before 11.0.1. The wiki contains a persistent XSS issue due to a lack of output encoding affecting a specific markdown feature.
Weakness: CWE-79
Which versions are affected by CVE-2018-12606?
It affects 1 product.
Products include Gitlab Gitlab.
How do I fix CVE-2018-12606?
No fix has been published for CVE-2018-12606 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2018-12606 being exploited?
There is no known exploitation of CVE-2018-12606 in the wild and no public exploit code.
Other vulnerabilities in Gitlab Gitlab
- CVE-2026-97229 GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound
- CVE-2026-85706 GitLab Community Edition and Enterprise Edition Path Traversal
- CVE-2023-7028 GitLab Community and Enterprise Editions Improper Access Control
- CVE-2021-22205 GitLab Community and Enterprise Editions Remote Code Execution
- CVE-2021-39935 GitLab Community and Enterprise Editions Server-Side Request Forgery (SSRF)
Sources
Also known as GHSA-3p78-2x5r-gjpp, UBUNTU-CVE-2018-12606.