{"id":82303,"date":"2026-07-20T22:47:29","date_gmt":"2026-07-20T19:17:29","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-63771-adminer-5-4-3-cookie-injection-via-x-forwarded-prefix-header\/"},"modified":"2026-07-20T22:47:29","modified_gmt":"2026-07-20T19:17:29","slug":"cve-2026-63771-adminer-5-4-3-cookie-injection-via-x-forwarded-prefix-header","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-63771-adminer-5-4-3-cookie-injection-via-x-forwarded-prefix-header\/","title":{"rendered":"CVE-2026-63771 &#8211; Adminer &lt; 5.4.3 Cookie Injection via X-Forwarded-Prefix Header"},"content":{"rendered":"<p>CVE ID :CVE-2026-63771<\/p>\n<p>  Published : July 20, 2026, 7:17 p.m. | 27\u00a0minutes ago<\/p>\n<p>  Description :Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to downgrade SameSite protection and enable cross-origin authenticated requests, bypassing cookie security controls.<\/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-2026-63771 Published : July 20, 2026, 7:17 p.m. | 27\u00a0minutes ago Description :Adminer before 5.4.3 contains a cookie injection vulnerability that allows attackers to manipulate cookie attributes by injecting arbitrary values through the unsanitized X-Forwarded-Prefix HTTP header used in Set-Cookie path attributes. Attackers can exploit a misconfigured reverse proxy to downgrade SameSite protection &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-82303","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82303","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=82303"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82303\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}