Code injection in WWBN AVideo
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.
Summary
WWBN AVideo is an open source video platform. In versions 29.0 and prior, the YPTSocket plugin's WebSocket server relays attacker-supplied JSON message bodies to every connected client without sanitizing the `msg` or `callback` fields. On the client side, `plugin/YPTSocket/script.js` contains two `eval()` sinks fed directly by those relayed fields (`json.msg.autoEvalCodeOnHTML` at line 568 and `json.callback` at line 95). Because tokens are minted for anonymous visitors and never revalidated beyond decryption, an unauthenticated attacker can broadcast arbitrary JavaScript that executes in the origin of every currently-connected user (including administrators), resulting in universal account takeover, session theft, and privileged action execution. Commit c08694bf6264eb4decceb78c711baee2609b4efd contains a fix.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WWBN | AVideo | up to 29.0 | — | No fix listed | CNA |
| — | wwbn/avideo (Packagist) | up to 29.0 | — | No fix listed | GHSA-gph2-j4c9-vhhr |
- AVideo VendorWWBN Affected up to 29.0 Fixed in — No fix listed CNA
- wwbn/avideo (Packagist) Vendor— Affected up to 29.0 Fixed in — No fix listed GHSA-gph2-j4c9-vhhr
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40911
- 2026-10-03 Alias added: GHSA-gph2-j4c9-vhhr
References
More WWBN Avideo vulnerabilities
- TI-2026-26095 AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php CVSS 3.1CRITICAL 9.4
- TI-2026-25874 Improper access control in WWBN AVideo CVSS 3.1CRITICAL 10.0
- TI-2026-25758 AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escape Bypass) CVSS 3.1CRITICAL 9.8
- TI-2024-20951 An issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
- TI-2023-10706 OS injection vulnerability in World Wide Broadcast Network AVideo version before 12.4… CVSS 3.1CRITICAL 9.8
- TI-2025-30954 An incomplete blacklist exists in the .htaccess sample of WWBN AVideo 14.4 and dev master… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-40911 · CVE Program
- CVE-2026-40911 · NVD
- FIRST EPSS
- GHSA-gph2-j4c9-vhhr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences