CVE-2026-41057Public exploitNetwork attack vector

Cross-origin API disclosure via credentialed origin reflection

Published Apr 21, 2026 · Updated Apr 21, 2026

CORS origin validation errors in WWBN AVideo 29.0 and earlier allow remote attackers to read authenticated API responses. plugin/API/router.php reflects arbitrary Origin headers before application logic, while allowOrigin(true) permits credentialed reflection in the JSON API paths. Exploitation requires a logged-in user to visit attacker-controlled content and exposes private account data or permits API state changes under that user's session.

CVSS severity7.1
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CORS origin validation errors in WWBN AVideo 29.0 and earlier allow remote attackers to read authenticated API responses. plugin/API/router.php reflects arbitrary Origin headers before application logic, while allowOrigin(true) permits credentialed reflection in the JSON API paths. Exploitation requires a logged-in user to visit attacker-controlled content and exposes private account data or permits API state changes under that user's session.

The record

CVE
CVE-2026-41057
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-346, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 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=<= 29.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=<= 29.0

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A: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.

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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-346Origin Validation Error
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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