{"id":"CVE-2026-75016","state":"PUBLISHED","title":"Magazine Blocks <= 1.8.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'clientId' Block Attribute","description":"The Magazine Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the News Ticker block's clientId attribute in versions up to, and including, 1.8.6. This is due to insufficient input sanitization and output escaping in the NewsTicker::render() method, which concatenates the clientId block attribute into an HTML class attribute without applying 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.","publishedAt":"2026-09-18T06:38:52.584Z","updatedAt":"2026-09-18T12:38:16.427Z","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":["wpblockart Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid"],"affected":[{"vendor":"wpblockart","product":"Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.8.6","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/34e0862d-55d3-4bc7-ba26-309ef1567e2b?source=cve","https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.5/includes/BlockTypes/NewsTicker.php#L43","https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.6/includes/BlockTypes/NewsTicker.php#L43","https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.6/includes/BlockTypes/NewsTicker.php#L106","https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.5/includes/BlockTypes/NewsTicker.php#L106","https://plugins.trac.wordpress.org/changeset?reponame=&old=3656574%40magazine-blocks&new=3656574%40magazine-blocks"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/75xxx/CVE-2026-75016.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-75016","state":"PUBLISHED","datePublished":"2026-09-18T06:38:52.584Z","dateUpdated":"2026-09-18T12:38:16.427Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-08-17T13:08:35.924Z"},"containers":{"cna":{"title":"Magazine Blocks <= 1.8.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'clientId' Block Attribute","descriptions":[{"lang":"en","value":"The Magazine Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the News Ticker block's clientId attribute in versions up to, and including, 1.8.6. This is due to insufficient input sanitization and output escaping in the NewsTicker::render() method, which concatenates the clientId block attribute into an HTML class attribute without applying 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."}],"affected":[{"vendor":"wpblockart","product":"Magazine Blocks – Blog Designer, Magazine & Newspaper Website Builder, Page Builder with Posts Blocks, Post Grid","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.8.6","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/34e0862d-55d3-4bc7-ba26-309ef1567e2b?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.5/includes/BlockTypes/NewsTicker.php#L43"},{"url":"https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.6/includes/BlockTypes/NewsTicker.php#L43"},{"url":"https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.6/includes/BlockTypes/NewsTicker.php#L106"},{"url":"https://plugins.trac.wordpress.org/browser/magazine-blocks/tags/1.8.5/includes/BlockTypes/NewsTicker.php#L106"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3656574%40magazine-blocks&new=3656574%40magazine-blocks"}],"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":"2026-09-18T06:38:52.584Z"},"credits":[{"lang":"en","type":"finder","value":"Wordfence PRISM"}],"timeline":[{"time":"2026-08-19T04:13:42.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-09-17T18:36:34.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T12:14:35.162528Z","id":"CVE-2026-75016","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":"2026-09-18T12:38:16.427Z"}}]}}}