Adobe Connect version 11.2.2 (and earlier) is affected by a secure design principles violation vulnerability via the 'pbMode' parameter. An unauthenticated attacker could leverage this vulnerability to edit or delete recordings on the Connect environment. Exploitation of this issue requires user interaction in that a victim must publish a link of a Connect recording.
https://helpx.adobe.com/security/products/connect/apsb21-66.html