{"schema":"threatline.record/2","record":{"id":"CVE-2026-107763","aliases":[],"summary":"Fastcache by Host.it <= 1.7.5 - Missing Authorization to Authenticated (Subscriber+) Arbitrary .htaccess Page-Cache Block Modification via updateSettings() admin_action_update Hook","details":"The Fastcache by Host.it plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to add or remove the plugin's page-cache rewrite rules in the site's root .htaccess file.","categories":["Unclassified"],"product":"Fastcache by Host.it","vendor":"hostspa","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107763","source_modified_at":"2026-10-18T11:22:48.291Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Fastcache by Host.it","vendor":"hostspa","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.7.5","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":4.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00213,"percentile":0.11054,"score_date":"2026-10-23"},"published_at":"2026-10-17T02:31:04.849Z","modified_at":"2026-10-18T11:22:48.291Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107763","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-18T11:22:48.291Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107763","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1f0b4db0-2ccd-47e8-8f40-82e97726f815?source=cve"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/fastcache-by-host-it/tags/1.7.4/src/Admin.php#L304"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/fastcache-by-host-it/tags/1.7.4/src/Admin.php#L44"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/browser/fastcache-by-host-it/tags/1.7.4/src/Core/Platform/Utility.php#L372"},{"source":"CVE List","url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3737013%40fastcache-by-host-it&new=3737013%40fastcache-by-host-it"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-18T11:10:14.166836Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-18T11:22:48.291Z","content_hash":"debb16750f64625227b940bba1bf1847ecfb97a1dbc2612b3707e07655241777"}}