Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-90543

CVE-2026-90543MEDIUM

WWBN AVideo Missing Authentication via socketMessageLiveOwner.json.php

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   N   L   N    6.9   .0060   47.0     —

AFFECTED
  Product  Versions     Fixed
  AVideo   unspecified  —

TIMELINE
  Sep 12  Reserved by VulnCheck
  Sep 12  Published (CNA: VulnCheck)
  Sep 14  EXPLOIT PUBLISHED — CVE-2026-90543 (WWBN AVideo). Public exploit reference added.

CWE-306 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Deferred

Description

WWBN AVideo at commit c3edcc274c389816d434acadac07ee78eaf330c1 and earlier, with the Live plugin enabled, contains a missing authentication vulnerability in plugin/Live/socketMessageLiveOwner.json.php. The script reads the `key` and `msg` parameters from $_REQUEST, resolves the stream owner via LiveTransmition::keyExists, and verifies that the stream owner (not the caller) is an administrator; it performs no User::isLogged() check and enforces no CSRF token. As a result, an unauthenticated remote attacker who knows an administrator's Live stream key can call sendSocketSuccessMessageToUsers_id and deliver arbitrary in-app/socket notification messages to that administrator. The issue was unpatched at the time of publication.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 12, 2026	Reserved	Reserved by VulnCheck
September 12, 2026	Published	Published (CNA: VulnCheck)
September 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-90543 (WWBN AVideo). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
WWBN	AVideo	—	—	—

Weaknesses

CWE-306

References (3)

Authoritative record: CVE-2026-90543 at cve.org

Vendors: wwbn

Weaknesses: CWE-306

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-90543 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.