{"id":79540,"date":"2026-06-10T03:46:55","date_gmt":"2026-06-10T00:16:55","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-53674-buddypress-14-4-0-regexp-injection-via-mention-username-resolution\/"},"modified":"2026-06-10T03:46:55","modified_gmt":"2026-06-10T00:16:55","slug":"cve-2026-53674-buddypress-14-4-0-regexp-injection-via-mention-username-resolution","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-53674-buddypress-14-4-0-regexp-injection-via-mention-username-resolution\/","title":{"rendered":"CVE-2026-53674 &#8211; BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution"},"content":{"rendered":"<p>CVE ID :CVE-2026-53674<\/p>\n<p>  Published : June 10, 2026, 12:16 a.m. | 20\u00a0minutes ago<\/p>\n<p>  Description :BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service through catastrophic backtracking.<\/p>\n<p>  Severity: 7.1 | HIGH<\/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-2026-53674 Published : June 10, 2026, 12:16 a.m. | 20\u00a0minutes ago Description :BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters &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-79540","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79540","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=79540"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79540\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=79540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=79540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=79540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}