{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12157","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","state":"PUBLISHED","assignerShortName":"Wordfence","dateReserved":"2026-06-12T18:27:41.912Z","datePublished":"2026-06-19T04:31:32.712Z","dateUpdated":"2026-06-22T12:52:02.336Z"},"containers":{"cna":{"providerMetadata":{"orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","shortName":"Wordfence","dateUpdated":"2026-06-19T04:31:32.712Z"},"affected":[{"vendor":"wpdevteam","product":"BetterDocs –  AI Documentation, Knowledge Base, Docs, Wikis, FAQ with Chatbot","versions":[{"version":"0","status":"affected","lessThanOrEqual":"4.5.3","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"The BetterDocs - Knowledge Base Docs & FAQ Solution for Elementor & Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the blockId attribute of the betterdocs/category-slate-layout Gutenberg block in versions up to, and including, 4.5.3. This is due to insufficient input sanitization and output escaping in the CategorySlateLayout::render() method, which echoes the blockId block attribute directly into an HTML class attribute without esc_attr(). 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."}],"title":"BetterDocs <= 4.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'blockId' Block Attribute","references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/81f61ef0-b3c7-4c69-bd18-5e5f0ea09abc?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/betterdocs/tags/4.5.3/includes/Editors/BlockEditor/Blocks/CategorySlateLayout.php#L97"},{"url":"https://plugins.trac.wordpress.org/browser/betterdocs/tags/4.5.3/includes/Editors/BlockEditor/Blocks/CategorySlateLayout.php#L66"},{"url":"https://plugins.trac.wordpress.org/browser/betterdocs/tags/4.3.12/includes/Editors/BlockEditor/Blocks/CategorySlateLayout.php#L97"},{"url":"https://plugins.trac.wordpress.org/browser/betterdocs/tags/4.3.12/includes/Editors/BlockEditor/Blocks/CategorySlateLayout.php#L66"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3576713%40betterdocs&new=3576713%40betterdocs&sfp_email=&sfph_mail="}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","cweId":"CWE-79","type":"CWE"}]}],"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"}}],"credits":[{"lang":"en","type":"finder","value":"Smidi"}],"timeline":[{"time":"2026-06-12T18:42:50.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-06-18T15:43:58.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T12:51:49.932223Z","id":"CVE-2026-12157","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-22T12:52:02.336Z"}}]}}