{"id":82663,"date":"2026-07-29T05:46:43","date_gmt":"2026-07-29T02:16:43","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-12939-newsletters\/"},"modified":"2026-07-29T05:46:43","modified_gmt":"2026-07-29T02:16:43","slug":"cve-2026-12939-newsletters","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-12939-newsletters\/","title":{"rendered":"CVE-2026-12939 &#8211; Newsletters"},"content":{"rendered":"<p>CVE ID :CVE-2026-12939<\/p>\n<p>  Published : July 29, 2026, 2:16 a.m. | 23\u00a0minutes ago<\/p>\n<p>  Description :The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the &#8216;link&#8217; attribute of the post_thumbnail (and newsletters_post_thumbnail) shortcodes in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the post_thumbnail() method in helpers\/shortcode.php, which concatenates the user-controlled $link shortcode attribute directly into an href attribute without esc_url() or 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.<\/p>\n<p>  Severity: 6.4 | MEDIUM<\/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-2026-12939 Published : July 29, 2026, 2:16 a.m. | 23\u00a0minutes ago Description :The Newsletters Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the &#8216;link&#8217; attribute of the post_thumbnail (and newsletters_post_thumbnail) shortcodes in versions up to and including 4.15. This is due to insufficient input sanitization and output escaping in the &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-82663","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82663","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=82663"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82663\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}