CVE-2026-41056Public exploitNetwork attack vector

Account takeover via credentialed origin reflection

Published Apr 21, 2026 · Updated Apr 21, 2026

Cross-origin policy failure in AVideo 29.0 and earlier allows remote attackers to read or modify authenticated API data. The allowOrigin(true) path in objects/functions.php reflects an arbitrary Origin while enabling credentials for the get.json.php and set.json.php API endpoints. Exploitation requires a logged-in user to visit an attacker-controlled page; the page can read PII and livestream secrets or submit state-changing API requests.

CVSS severity8.1
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-origin policy failure in AVideo 29.0 and earlier allows remote attackers to read or modify authenticated API data. The allowOrigin(true) path in objects/functions.php reflects an arbitrary Origin while enabling credentials for the get.json.php and set.json.php API endpoints. Exploitation requires a logged-in user to visit an attacker-controlled page; the page can read PII and livestream secrets or submit state-changing API requests.

The record

CVE
CVE-2026-41056
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-942, T1189
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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

8.1GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

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-942Permissive Cross-domain Security Policy with Untrusted Domains
T1189Drive-by Compromise

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo