{"schema":"threatline.record/2","record":{"id":"CVE-2026-104729","aliases":[],"summary":"Avada (Fusion) Builder <= 3.16.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'tab_index' and 'empty_notice' Shortcode Attributes","details":"The Avada (Fusion) Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tab_index, empty_notice' parameter in all versions up to, and including, 3.16.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. wp_kses_post does not strip the payload on save because the dangerous characters reside within shortcode attribute text between square brackets, which kses treats as plain text rather than HTML markup.","categories":["Unclassified"],"product":"Avada (Fusion) Builder","vendor":"themefusion","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104729","source_modified_at":"2026-10-28T06:45:13.360Z","fetched_at":"2026-10-28T08:18:35.509402Z","product":"Avada (Fusion) Builder","vendor":"themefusion","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.16.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.4,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T06:45:13.360Z","modified_at":"2026-10-28T06:45:13.360Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104729","fetched_at":"2026-10-28T08:18:35.509402Z","source_modified_at":"2026-10-28T06:45:13.360Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/650d346d-c30a-4ee1-ac50-6a264e181174?source=cve"},{"source":"CVE List","url":"https://avada.com/blog/version-7-16-3-security-update/"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-28T06:45:13.360Z","content_hash":"130ac9ac102d5ce0332b25751d0fac4a90cf93b8f8c37c7c06f287258315d0ef"}}