{"id":"BIT-gitlab-2025-4439","summary":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab","details":"An issue has been discovered in GitLab CE/EE affecting all versions from 15.10 before 18.0.5, 18.1 before 18.1.3, and 18.2 before 18.2.1 that could have allowed an authenticated user to perform cross-site scripting attacks when the instance is served through certain content delivery networks.","aliases":["CVE-2025-4439"],"modified":"2025-08-11T00:06:06.142Z","published":"2025-07-29T06:06:11.308Z","database_specific":{"cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/issues/541177"},{"type":"WEB","url":"https://hackerone.com/reports/3120111"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4439"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"15.10.0"},{"fixed":"18.0.5"},{"introduced":"18.1.0"},{"fixed":"18.1.3"},{"introduced":"18.2.0"},{"fixed":"18.2.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2025-4439.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}],"schema_version":"1.7.3"}