CVE-2026-81733: CSRF

Description

WWBN AVideo through 30.0 (and master up to commit 4cb576e) contains a cross-site request forgery vulnerability in plugin/Live/myLiveControls.save.json.php. The endpoint only checks that a user is logged in and processes customUrl, customMessage, and autoRedirect parameters from $_REQUEST via a GET request without enforcing a CSRF token or origin check. An attacker who lures a logged-in streamer to a malicious page can silently change the live-channel viewer-redirect settings (persisted in users.externalOptions), causing viewers to be redirected to a phishing site or shown a spoofed message.

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Weakness Type (CWE)

CWE-352 Cross-Site Request Forgery

References

Other References

https://github.com/WWBN/AVideo/security/advisories/GHSA-wpr3-456q-6vgc https://www.vulncheck.com/advisories/wwbn-avideo-through-30.0-csrf-via-mylivecontrols-save-json-php https://github.com/WWBN/AVideo/security/advisories/GHSA-wpr3-456q-6vgc

Frequently Asked Questions

What is CVE-2026-81733? +

WWBN AVideo through 30.0 (and master up to commit 4cb576e) contains a cross-site request forgery vulnerability in plugin/Live/myLiveControls.save.json.php. The endpoint only checks that a user is logged in and processes customUrl, customMessage, and autoRedirect parameters from $_REQUEST via a GET request without enforcing a CSRF token or origin check. An attacker who lures a logged-in streamer to a malicious page can silently change the live-channel viewer-redirect settings (persisted in users.externalOptions), causing viewers to be redirected to a phishing site or shown a spoofed message.

How do I check if I'm vulnerable to CVE-2026-81733? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-81733