Which versions of WWBN AVideo are affected by CVE-2026-88874?

AVideo's password-protected live streaming feature can be bypassed by unauthenticated users to access RTMP stream keys, HLS playlist URLs, and encryption keys.

How to fix or mitigate CVE-2026-88874?

Within 24 hours: Audit all active live streams and identify those with password protection; rotate all stream keys and encryption keys immediately. Within 7 days: Deploy a reverse proxy with HTTP Basic Authentication or equivalent access controls in front of the `/live` location, and ensure the `auth_request` directive is enabled in NGINX configurations (uncomment `auth_key_check` in the `.key` block). Within 30 days: Monitor the AVideo project for a vendor patch, conduct a security review of alternative streaming platforms if patching timeline is unclear, and consider temporary suspension of monetized live streams until protection can be verified.

WWBN AVideo CVE-2026-88874

Q: What is the CVSS score of CVE-2026-88874?

CVE-2026-88874 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.5%.

EUVD-2026-75424 HIGH

Information Exposure (CWE-200)

2026-09-10 VulnCheck

GHSA-2hqj-j633-f566

PHP Information Disclosure Nginx Avideo Wwbn

8.7

CVSS 4.0 · Vendor: VulnCheck

Severity by source

Vendor (VulnCheck) PRIMARY

8.7 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

vuln.today AI

7.5 HIGH

Fully unauthenticated network exploit with no complexity; confidentiality-only impact (stream keys and decryption material exposed), no integrity or availability effect.

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

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

POC Analysis Generated

Sep 10, 2026 - 15:29 vuln.today

Analysis Generated

Sep 10, 2026 - 14:00 vuln.today

CVE Published

Sep 10, 2026 - 13:05 cve.org

HIGH 8.7

DescriptionCVE.org

AVideo through revision c3edcc274c389816d434acadac07ee78eaf330c1 (master, 2026-08-23) does not enforce the Live stream password check on the stats endpoint or on the HLS origin. Live::_getStats() (plugin/Live/Live.php) returns a password-protected transmission's RTMP stream key, its isPasswordProtected flag, and its HLS (m3u8) URL to unauthenticated callers, in both the public applications list and the hidden_applications branch used when canSeeLiveFromLiveKey() fails. Separately, the shipped NGINX configuration (deploy/nginx/nginx.conf) serves the .m3u8 playlist, the AES-128 key, and the transport-stream segments from the /live location without any auth_request (the auth_key_check directive in the .key location is commented out). A remote, unauthenticated attacker can therefore retrieve the stream key and decryption key and watch a password-protected live transmission without supplying the configured password. No patched version was available at the time of the advisory.

AnalysisAI

Password-protected live stream bypass in AVideo exposes RTMP stream keys, HLS playlist URLs, and AES-128 decryption keys to unauthenticated remote callers via two compounding failures. The PHP-side stats API (Live::_getStats() in plugin/Live/Live.php) returns protected transmission credentials regardless of password check outcome - including the hidden_applications branch invoked when canSeeLiveFromLiveKey() denies access. …

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Vulnerability AssessmentAI

Exploitation	The Live plugin must be installed and active in AVideo, and at least one live stream must be configured with password protection enabled (isPasswordProtected flag set). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 4.0 vector AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N scores 8.7 and accurately reflects the attack profile: no authentication, no complexity, fully network-accessible. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation	No vendor-released patch was identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.