{"id":"GO-2026-4456","summary":"Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering in github.com/mattermost/mattermost-plugin-confluence","details":"Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering in github.com/mattermost/mattermost-plugin-confluence","aliases":["CVE-2025-13523","GHSA-ffx7-34p2-vm3w"],"modified":"2026-02-19T20:41:26.069755Z","published":"2026-02-17T18:09:06Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-4456","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-ffx7-34p2-vm3w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-13523"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-plugin-confluence","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-confluence"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.7.0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-4456.json"}}],"schema_version":"1.7.3"}