{"id":14538,"date":"2026-09-04T19:02:02","date_gmt":"2026-09-04T11:02:02","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-53515"},"modified":"2026-09-04T19:02:02","modified_gmt":"2026-09-04T11:02:02","slug":"cve-2026-53515","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-53515","title":{"rendered":"CVE-2026-53515 [HIGH] &#8211; Better Auth is an authentication and authorization library for TypeScript. From 1.2.10 unt"},"content":{"rendered":"<p>Better Auth is an authentication and authorization library for TypeScript. From 1.2.10 until 1.6.11, the @better-auth\/sso plugin&#8217;s POST \/sso\/register endpoint lets any organization member attach a new SSO provider to that organization because registerSSOProvider checks only for a membership row and does not require an owner or admin role, allowing attacker-controlled OIDC or SAML providers to drive \/sso\/callback\/{providerId} organization provisioning. This issue is fixed in version 1.6.11.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Better Auth is an authentication and authorization library for TypeScript. From 1.2.10 until 1.6.11, the @better-auth\/sso plugin&#8217;s POST \/sso\/register endpoint lets any organization member attach a new<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14538","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}