Server-Side Request Forgery (SSRF) in AVideo - CVE-2026-33294
Published: April 8, 2026
Vulnerability identifier: #VU125452
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-33294
CWE-ID: CWE-918
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 disclose sensitive information from internal network resources.
The vulnerability exists due to server-side request forgery (SSRF) in plugin/BulkEmbed/save.json.php when fetching user-supplied thumbnail URLs. A remote user can send a specially crafted save request with an internal URL to disclose sensitive information from internal network resources.
The HTTP response body is saved as the video thumbnail and can be retrieved by viewing the saved poster image, resulting in a scope change into internal network or cloud metadata resources.
How to mitigate CVE-2026-33294
Install security update from vendor's website.