{"id":82166,"date":"2026-07-18T00:47:09","date_gmt":"2026-07-17T21:17:09","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-55518-avo-missing-authorization-in-avo-association-attach-endpoint-allows-unauthorized-relationship-manipulation-and-privilege-escalation\/"},"modified":"2026-07-18T00:47:09","modified_gmt":"2026-07-17T21:17:09","slug":"cve-2026-55518-avo-missing-authorization-in-avo-association-attach-endpoint-allows-unauthorized-relationship-manipulation-and-privilege-escalation","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-55518-avo-missing-authorization-in-avo-association-attach-endpoint-allows-unauthorized-relationship-manipulation-and-privilege-escalation\/","title":{"rendered":"CVE-2026-55518 &#8211; Avo: Missing Authorization in Avo Association Attach Endpoint Allows Unauthorized Relationship Manipulation and Privilege Escalation"},"content":{"rendered":"<p>CVE ID :CVE-2026-55518<\/p>\n<p>  Published : July 17, 2026, 9:17 p.m. | 21\u00a0minutes ago<\/p>\n<p>  Description :Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo&#8217;s association attach workflow checks attach_? in the UI and GET \/resources\/:resource\/:id\/:related\/new path, but the actual write endpoint, POST \/resources\/:resource\/:id\/:related, does not run the same authorization check before mutating the association through Avo::AssociationsController#create. An authenticated low-privileged Avo user can bypass hidden or disabled attach controls and directly attach related records to a parent record by sending a crafted POST request, which can lead to privilege escalation and cross-tenant data exposure where associations represent authorization-bearing relationships. This issue is fixed in versions 3.32.1 and 4.0.0.beta.51.<\/p>\n<p>  Severity: 9.6 | CRITICAL<\/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-2026-55518 Published : July 17, 2026, 9:17 p.m. | 21\u00a0minutes ago Description :Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo&#8217;s association attach workflow checks attach_? in the UI and GET \/resources\/:resource\/:id\/:related\/new path, but the actual write endpoint, POST \/resources\/:resource\/:id\/:related, does not run &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-82166","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82166","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=82166"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82166\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}