OS Command Injection in AVideo - CVE-2026-33648
Published: May 4, 2026
Vulnerability identifier: #VU129514
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-33648
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: World Wide Broadcast Network
Affected software:
AVideo
AVideo
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary OS commands on the server.
The vulnerability exists due to improper neutralization of special elements used in an OS command in plugin/Live/standAloneFiles/restreamer.json.php when constructing a log file path from user-supplied users_id and liveTransmitionHistory_id values and passing it to exec(). A remote user can send a specially crafted JSON request containing shell metacharacters to execute arbitrary OS commands on the server.
Exploitation requires valid restream functionality access, including a valid restream token and live streaming permissions.
How to mitigate CVE-2026-33648
Install security update from vendor's website.