CVE-2026-35179

WWBN AVideo Unauthenticated Instagram Graph API Proxy via publishInstagram.json.php

WWBN AVideo is an open source video platform. In versions 26.0 and prior, the SocialMediaPublisher plugin exposes a publishInstagram.json.php endpoint that acts as an unauthenticated proxy to the Facebook/Instagram Graph API. The endpoint accepts user-controlled parameters including an access token, container ID, and Instagram account ID, and passes them directly to the Graph API via InstagramUploader::publishMediaIfIsReady(). This allows any unauthenticated user to make arbitrary Graph API calls through the server, potentially using stolen tokens or abusing the platform's own credentials.

Affected

WWBN · AVideo

CVSS v3.1 GITHUB

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.31% chance of exploitation in the next 30 days, 23rd percentile

Published

2026-04-06

Updated

2026-04-07

Proof-of-concept exploits (1)

• advisories/GHSA-x9w5-xccw-5h9w

Security advisories

• WWBN/AVideo/security/advisories/GHSA-x9w5-xccw-5h9w

References

• CVE Record
• NVD entry