PT-2023-26556 · Unknown · Matrix-Appservice-Bridge

Name of the Vulnerable Software and Affected Versions: matrix-appservice-bridge versions 4.0.0 through 8.1.1 matrix-appservice-bridge versions 9.0.0 Description: A malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the...