{"id":"BIT-gitlab-2026-78252","summary":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab","details":"GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an authenticated user could have induced a targeted user to perform unintended state-changing HTTP requests due to improper sanitization of user-controlled data in the Markdown JSON table renderer.","aliases":["CVE-2026-78252"],"modified":"2026-09-25T14:15:05.962472720Z","published":"2026-09-25T12:49:59.824Z","database_specific":{"cpes":["cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*","cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-2-released/"},{"type":"WEB","url":"https://gitlab.com/gitlab-org/gitlab/-/work_items/621447"},{"type":"WEB","url":"https://hackerone.com/reports/3917471"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78252"}],"affected":[{"package":{"name":"gitlab","ecosystem":"Bitnami","purl":"pkg:bitnami/gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"15.3.0"},{"fixed":"19.1.8"},{"introduced":"19.2.0"},{"fixed":"19.2.6"},{"introduced":"19.3.0"},{"fixed":"19.3.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-78252.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L"}]}],"schema_version":"1.9.0"}