{"id":"CVE-2026-85653","state":"PUBLISHED","title":"Contextual Related Posts <= 4.4.1 - Authenticated (Author+) Stored Cross-Site Scripting via 'other_attributes' Block Parameter","description":"The Contextual Related Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'other_attributes' Block Parameter in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","publishedAt":"2026-09-22T05:30:42.725Z","updatedAt":"2026-09-22T15:38:16.401Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["ajay Contextual Related Posts"],"affected":[{"vendor":"ajay","product":"Contextual Related Posts","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.4.1","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/1ee59a73-c449-462d-9ff0-b652be56b73b?source=cve","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L972","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/blocks/class-blocks.php#L95","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L133","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L854","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L972","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/blocks/class-blocks.php#L95","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L133","https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L854","https://plugins.trac.wordpress.org/changeset?reponame=&old=3703115%40contextual-related-posts&new=3703115%40contextual-related-posts"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/85xxx/CVE-2026-85653.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-85653","state":"PUBLISHED","datePublished":"2026-09-22T05:30:42.725Z","dateUpdated":"2026-09-22T15:38:16.401Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-09-04T13:11:31.767Z"},"containers":{"cna":{"title":"Contextual Related Posts <= 4.4.1 - Authenticated (Author+) Stored Cross-Site Scripting via 'other_attributes' Block Parameter","descriptions":[{"lang":"en","value":"The Contextual Related Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'other_attributes' Block Parameter in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}],"affected":[{"vendor":"ajay","product":"Contextual Related Posts","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.4.1","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1ee59a73-c449-462d-9ff0-b652be56b73b?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L972"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/blocks/class-blocks.php#L95"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L133"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L854"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L972"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/blocks/class-blocks.php#L95"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L133"},{"url":"https://plugins.trac.wordpress.org/browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L854"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3703115%40contextual-related-posts&new=3703115%40contextual-related-posts"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-09-22T05:30:42.725Z"},"credits":[{"lang":"en","type":"finder","value":"Athiwat Tiprasaharn (Jitlada)"},{"lang":"en","type":"finder","value":"Itthidej Aramsri (Boeing777)"}],"timeline":[{"time":"2026-09-19T06:50:21.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-09-21T16:46:11.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T14:12:07.401882Z","id":"CVE-2026-85653","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-22T15:38:16.401Z"}}]}}}