What’s Vulnerable › Vulnerabilities

CVE-2025-6948: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-10 · updated 2026-06-17
• Weakness: CWE-79

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 17.11 before 17.11.6, 18.0 before 18.0.4, and 18.1 before 18.1.2 that, under certain conditions, could have allowed a successful attacker to execute actions on behalf of users by injecting malicious content.

Affected products

• GitLab: from 17.11.0 before 17.11.6; from 18.0.0 before 18.0.4; from 18.1.0 before 18.1.2 — fixed in 17.11.6, 18.0.4, 18.1.2

How to fix

Upgrade to a fixed version: GitLab 17.11.6, 18.0.4, 18.1.2. Check the vendor advisory for mitigations.

References

• https://gitlab.com/gitlab-org/gitlab/-/issues/552616
• https://hackerone.com/reports/3227316

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