{"action":"Upgrade n8n to 2.24.0 or later.","affected":[{"fixed":"2.24.0","introduced":"0"}],"component":"n8n","cve_ids":["CVE-2026-54303"],"ecosystem":"npm","epss":0.00231,"exploited":false,"fixed_versions":["2.24.0"],"ghsa_id":"GHSA-h86q-fx34-gfjr","id":"tcs_01M5KFTGEFTW8ABE0NNB89YAW9","modified_at":"2026-07-20T13:45:32.206123450Z","published_at":"2026-06-16T22:39:16Z","references":["https://osv.dev/vulnerability/GHSA-h86q-fx34-gfjr","https://github.com/n8n-io/n8n/security/advisories/GHSA-h86q-fx34-gfjr","https://nvd.nist.gov/vuln/detail/CVE-2026-54303","https://github.com/n8n-io/n8n"],"severity":{"label":"high","score":7.6},"sources":[{"source":"osv","source_id":"GHSA-h86q-fx34-gfjr","url":"https://osv.dev/vulnerability/GHSA-h86q-fx34-gfjr"}],"summary":"n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints"}