CVE-2026-59256Public exploitNetwork attack vector

Restricted video disclosure via unbound Gallery tokens

Published Aug 22, 2026 · Updated Aug 22, 2026

Authorization bypass in World Wide Broadcast Network AVideo through commit 9c39d8c8 allows remote attackers to view restricted videos. The Gallery sections endpoint exposes a token from getToken(), which binds neither a subject nor a purpose, while verifyToken() accepts it across subsystems. On a default installation with Gallery enabled, an unauthenticated visitor who knows a restricted video's directory name can reuse the five-minute token at view/hls.php to obtain its HLS playlist.

CVSS severity8.7
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in World Wide Broadcast Network AVideo through commit 9c39d8c8 allows remote attackers to view restricted videos. The Gallery sections endpoint exposes a token from getToken(), which binds neither a subject nor a purpose, while verifyToken() accepts it across subsystems. On a default installation with Gallery enabled, an unauthenticated visitor who knows a restricted video's directory name can reuse the five-minute token at view/hls.php to obtain its HLS playlist.

The record

CVE
CVE-2026-59256
Published
Aug 22, 2026
Updated
Aug 22, 2026
Vendor
WWBN
Product
AVideo
Classifications
CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=9c39d8c8b4c1f75540788d6b391740852ceb0732

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WWBN · AVideoversion=0 <=9c39d8c8b4c1f75540788d6b391740852ceb0732

Published CVSS scores

7.5GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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