{"id":79494,"date":"2026-06-09T09:46:54","date_gmt":"2026-06-09T06:16:54","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-8981-lazy-blocks-4-3-0-admin-stored-xss-via-custom-block-frontend-html\/"},"modified":"2026-06-09T09:46:54","modified_gmt":"2026-06-09T06:16:54","slug":"cve-2026-8981-lazy-blocks-4-3-0-admin-stored-xss-via-custom-block-frontend-html","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-8981-lazy-blocks-4-3-0-admin-stored-xss-via-custom-block-frontend-html\/","title":{"rendered":"CVE-2026-8981 &#8211; Lazy Blocks &lt; 4.3.0 &#8211; Admin+ Stored XSS via Custom Block Frontend HTML"},"content":{"rendered":"<p>CVE ID :CVE-2026-8981<\/p>\n<p>  Published : June 9, 2026, 6:16 a.m. | 18\u00a0minutes ago<\/p>\n<p>  Description :The Custom Block Builder  WordPress plugin before 4.3.0 does not consistently check the unfiltered_html capability across all paths that write to its block template code fields, allowing administrators on multisite installations (or single-site installs with DISALLOW_UNFILTERED_HTML defined) to inject arbitrary JavaScript that executes for any visitor of pages embedding the affected block.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-8981 Published : June 9, 2026, 6:16 a.m. | 18\u00a0minutes ago Description :The Custom Block Builder WordPress plugin before 4.3.0 does not consistently check the unfiltered_html capability across all paths that write to its block template code fields, allowing administrators on multisite installations (or single-site installs with DISALLOW_UNFILTERED_HTML defined) to inject arbitrary JavaScript &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-79494","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79494","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=79494"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79494\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=79494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=79494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=79494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}