CVE-2026-104445
HIGH
NVD
CVSS Score
8.2
Severity
HIGH
Published
Oct 02, 2026
Vendor
unknown
Description
YesWiki before 4.6.7 contains an authentication bypass vulnerability in the ActivityPub inbox that fails to bind the verified HTTP signature signer to the activity actor. Unauthenticated attackers with any ActivityPub keypair can send signed Delete or Update activities referencing a mirrored entry's sourceUrl to delete or overwrite other actors' federated entries.