WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at plugin/Live/standAloneFiles/control.json.php accepts a user-supplied streamerURL parameter that overrides where the server sends token verification requests. An attacker can redirect token verification to a server they control that always returns {"error": false}, completely bypassing authentication. This grants unauthenticated control over any live stream on the platform, including dropping active publishers, starting/stopping recordings, and probing stream existence. Commit 388fcd57dbd16f6cb3ebcdf1d08cf2b929941128 contains a patch.
CVE-2026-33716
CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence
Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-25. a secondary CVSS source baseline 9.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 9.4Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.4
- EG Score
- 9.4(medium)
- EG Risk
- 47(Track)EG Risk 47/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity94% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
March 23, 2026
Last Modified
June 17, 2026
Advisory Details (2)
Auto-updated Jul 27, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available
Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php · Advisory · WWBN/AVideo · GitHub
https://github.com/WWBN/AVideo/security/advisories/GHSA-9hv9-gvwm-95f2github_commit Patch Available
commit 388fcd57dbd1 (WWBN/AVideo)
Patch available: WWBN/AVideo 29.0 (contains commit 388fcd57dbd1)
https://github.com/WWBN/AVideo/commit/388fcd57dbd16f6cb3ebcdf1d08cf2b929941128Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| composer | wwbn/avideo | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 14:32 UTCEG score recompute
- 2026-07-27 14:32 UTCGHSA enrichment
Related CVEs(same product + same CWE)
Same product
10 showncomposer:wwbn/avideo
Same CWE
10 shownCWE-287
Frequently asked(4)
What is CVE-2026-33716?
CVE-2026-33716 is a critical vulnerability published on March 23, 2026. WWBN AVideo is an open source video platform. In versions up to and including 26.0, the standalone live stream control endpoint at plugin/Live/standAloneFiles/control.json.php accepts a user-supplied streamerURL parameter that overrides where the server sends token verification requests. An…
When was CVE-2026-33716 disclosed?
CVE-2026-33716 was first published in the National Vulnerability Database on March 23, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-33716?
CVE-2026-33716 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-33716?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33716, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-33716
Is Your Infrastructure Affected by CVE-2026-33716?
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