Description
WWBN AVideo through commit 9c39d8c8 contains an authorization bypass vulnerability where getToken() creates tokens without binding to user identity or purpose, and plugin/Gallery/view/sections.php issues valid tokens to unauthenticated visitors. Attackers can retrieve a token from the Gallery endpoint and use it to bypass authorization checks in other subsystems like view/hls.php to access restricted video content.
Published: 2026-08-22
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Access to Restricted Video Content
Action: Patch Immediately
AI Analysis

Impact

WWBN AVideo contains an authorization bypass flaw where the getToken() routine builds authentication tokens that are not tied to a specific user or purpose. The Gallery plugin exposes an endpoint that distributes these unbound tokens to any visitor, allowing an attacker to acquire a valid token without authenticating. With a captured token, the attacker can then call other protected endpoints, such as view/hls.php, to retrieve or stream video content that is otherwise restricted to authorized users.

Affected Systems

This issue affects any installation of WWBN AVideo that includes or is based on commit 9c39d8c8 and has not yet applied the vendor’s patch. The flaw resides in the core token generation logic and the Gallery plugin’s token distribution module. Administrators should verify whether their deployment contains the unfixed commit or a newer release that addresses the bug.

Risk and Exploitability

The CVSS score of 8.7 classifies the vulnerability as high severity, reflecting its potential to expose private data without authentication. The EPSS score is not available, limiting visibility into current exploitation likelihood, and the vulnerability is not listed in CISA’s KEV catalog. Based on the description, the likely attack vector is a remote HTTP request to the Gallery endpoint; the flaw requires no credentials and can be exploited by any unauthenticated user, making the attack practical and potentially impactful if the attacker gains access to restricted video streams.

Generated by OpenCVE AI on August 22, 2026 at 13:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update to the latest AVideo release that includes the token-binding fix
  • Modify the Gallery endpoint to require authentication before issuing tokens, for example by adding an access check or firewall rule
  • Alter the getToken() implementation to embed user identity or session information in the token payload, preventing reuse across users
  • Monitor application logs for unexpected token requests and ensure only legitimate authenticated requests generate tokens

Generated by OpenCVE AI on August 22, 2026 at 13:51 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 26 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 22 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Description WWBN AVideo through commit 9c39d8c8 contains an authorization bypass vulnerability where getToken() creates tokens without binding to user identity or purpose, and plugin/Gallery/view/sections.php issues valid tokens to unauthenticated visitors. Attackers can retrieve a token from the Gallery endpoint and use it to bypass authorization checks in other subsystems like view/hls.php to access restricted video content.
Title WWBN AVideo Unbound Token Authorization Bypass via Gallery
First Time appeared Wwbn
Wwbn avideo
Weaknesses CWE-200
CPEs cpe:2.3:a:wwbn:avideo:-:*:*:*:*:*:*:*
Vendors & Products Wwbn
Wwbn avideo
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-26T17:52:06.081Z

Reserved: 2026-07-04T12:17:14.302Z

Link: CVE-2026-59256

cve-icon Vulnrichment

Updated: 2026-08-26T17:51:59.437Z

cve-icon NVD

Status : Deferred

Published: 2026-08-22T13:16:38.817

Modified: 2026-08-26T18:16:42.923

Link: CVE-2026-59256

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-22T14:00:17Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor