{"action":"Upgrade apostrophe to 4.29.0 or later.","affected":[{"fixed":"4.29.0","introduced":"0"}],"component":"apostrophe","cve_ids":["CVE-2026-35569"],"ecosystem":"npm","epss":0.00439,"exploited":false,"fixed_versions":["4.29.0"],"ghsa_id":"GHSA-855c-r2vq-c292","id":"tcs_01M5KFBT0FN6ZMZJD72SFME799","modified_at":"2026-05-05T16:04:04.041725Z","published_at":"2026-04-16T20:44:18Z","references":["https://osv.dev/vulnerability/GHSA-855c-r2vq-c292","https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-855c-r2vq-c292","https://nvd.nist.gov/vuln/detail/CVE-2026-35569","https://github.com/apostrophecms/apostrophe/commit/0e57dd07a56ae1ba1e3af646ba026db4d0ab5bb3","https://github.com/Chittu13/cve-research/tree/main/CVE-2026-35569","https://github.com/apostrophecms/apostrophe"],"severity":{"label":"high","score":8.7},"sources":[{"source":"osv","source_id":"GHSA-855c-r2vq-c292","url":"https://osv.dev/vulnerability/GHSA-855c-r2vq-c292"}],"summary":"Stored XSS in SEO Fields Leads to Authenticated API Data Exposure in ApostropheCMS"}