CVE-2026-126541 (CVSS 8.1)

Description

WWBN AVideo through 29.7.1 contains a missing authorization vulnerability in Live plugin restream endpoints that allows authenticated streamers to obtain other users' stream keys by supplying arbitrary live_transmitions_history_id values. Attackers can redeem the issued action tokens at verifyTokenForAction.json.php to retrieve victims' HLS URLs and stream keys, then publish as the victim or restream private or pay-per-view lives.

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CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-639 CWE-639

References

Other References

https://github.com/WWBN/AVideo/blob/v29.7.1/plugin/Live/view/Live_restreams/verifyTokenForAction.json.php#L30-L56 https://github.com/WWBN/AVideo/blob/v29.7.1/plugin/Live/view/getRestream.json.php#L27-L48 https://github.com/WWBN/AVideo/commit/be9d70199279aafe5062744d319fd4df4e5f7a48 https://github.com/WWBN/AVideo/security/advisories/GHSA-233c-vfmw-6rw9 https://www.vulncheck.com/advisories/wwbn-avideo-through-29.7.1-missing-authorization-via-live-restream-endpoints

Frequently Asked Questions

What is CVE-2026-126541? +

WWBN AVideo through 29.7.1 contains a missing authorization vulnerability in Live plugin restream endpoints that allows authenticated streamers to obtain other users' stream keys by supplying arbitrary live_transmitions_history_id values. Attackers can redeem the issued action tokens at verifyTokenForAction.json.php to retrieve victims' HLS URLs and stream keys, then publish as the victim or restream private or pay-per-view lives. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-126541? +

CVE-2026-126541 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-126541? +

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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