CVE-2026-34374

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the Live_schedule::keyExists() method constructs a SQL query by interpolating a stream key directly into the query string without parameterization. This method is called as a fallback from LiveTransmition::keyExists() when the initial parameterized lookup returns no results. Although the calling function correctly uses parameterized queries for its own lookup, the fallback path to Live_schedule::keyExists() undoes this protection entirely. This vulnerability is distinct from GHSA-pvw4-p2jm-chjm, which covers SQL injection via the livescheduleid parameter in the reminder function. This finding targets the stream key lookup path used during RTMP publish authentication. As of time of publication, no patched versions are available.