CVE-2026-104463

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger server requests by sending signed Follow activities to the public forms actor inbox route. Attackers sign requests with their own keyId while supplying internal actor URLs in...

EUVD-2026-91474

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger server requests by sending signed Follow activities to the public forms actor inbox route. Attackers sign requests with their own keyId while supplying internal actor URLs in...

CVE-2026-104463

YesWiki versions prior to 4.6.7 are vulnerable to a Server-Side Request Forgery (SSRF) vulnerability. An unauthenticated attacker can trigger server-side requests by sending signed Follow activities to the public forms actor inbox route. By signing requests with their own keyId and supplying inte...

YesWiki has Unauthenticated Server-Side Request Forgery via ActivityPub `Signature.keyId`

Summary The POST /api/forms/formId/actor/inbox route - exposed publicly with acl:"public" - accepts an HTTP Signature header whose keyId parameter is a URL. HttpSignatureService::verifySignature parses the header and immediately makes a server-side HTTP GET to that URL, before any cryptographic...

Ech0: Scoped admin access tokens can bypass least-privilege controls on privileged endpoints, including backup export

Summary Ech0 scoped access tokens do not reliably enforce least privilege: multiple privileged admin routes omit scope checks, and the backup export handler strips token scope metadata entirely, allowing a low-scope admin access token to reach broader admin functionality than intended. Impact An...