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{"schema_version":"1.9.0","id":"GHSA-vgjm-2cpf-4g7c","published":"2026-03-05T20:16:20Z","modified":"2026-03-23T04:56:07.977783395Z","aliases":["CVE-2026-26276","GO-2026-4627"],"summary":"Gogs: DOM-based XSS via milestone selection","details":"# Summary\n\nIt was confirmed in a test environment that an attacker can store an HTML/JavaScript payload in a repository’s **Milestone name**, and when another user selects that Milestone on the **New Issue** page (`/issues/new`), a **DOM-Based XSS** is triggered.\n\n# Impact\n\n* Theft of information accessible in the victim’s session.\n* Extraction of CSRF tokens and submission of state-changing requests with the victim’s privileges.\n* Repository operations performed with the victim’s privileges (Issue operations, settings changes, etc.).\n\n(The impact scope depends on the victim’s permission level.)\n\n# Remediation\n\nA fix is available at https://github.com/gogs/gogs/releases/tag/v0.14.2","affected":[{"package":{"name":"gogs.io/gogs","ecosystem":"Go","purl":"pkg:golang/gogs.io/gogs"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.13.3"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-vgjm-2cpf-4g7c/GHSA-vgjm-2cpf-4g7c.json"}}],"references":[{"type":"WEB","url":"https://github.com/gogs/gogs/security/advisories/GHSA-vgjm-2cpf-4g7c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26276"},{"type":"WEB","url":"https://github.com/gogs/gogs/pull/8178"},{"type":"WEB","url":"https://github.com/gogs/gogs/commit/9001a68cdda7bd9c078ffd6d1c4622905ac11e5c"},{"type":"PACKAGE","url":"https://github.com/gogs/gogs"},{"type":"WEB","url":"https://github.com/gogs/gogs/releases/tag/v0.14.2"}],"database_specific":{"cwe_ids":["CWE-79"],"github_reviewed":true,"github_reviewed_at":"2026-03-05T20:16:20Z","nvd_published_at":"2026-03-05T19:16:04Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N"}]} |