CVE-2026-33237Public exploitNetwork attack vector

Admin internal-data access via unchecked Scheduler callback

Published Mar 20, 2026 · Updated Mar 20, 2026

SSRF in World Wide Broadcast Network AVideo before 26.0 allows remote authenticated users to read internal resources through Scheduler callbacks. Scheduler.run passes an admin-configured callbackURL to url_get_contents after only a syntax check, omitting the private-address check. Administrator access and an enabled Scheduler path are required; reachable results include internal API data and cloud instance credentials.

CVSS severity5.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in World Wide Broadcast Network AVideo before 26.0 allows remote authenticated users to read internal resources through Scheduler callbacks. Scheduler.run passes an admin-configured callbackURL to url_get_contents after only a syntax check, omitting the private-address check. Administrator access and an enabled Scheduler path are required; reachable results include internal API data and cloud instance credentials.

The record

CVE
CVE-2026-33237
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-918, CAPEC-664, T1552.005, T1046
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 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=< 26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

World Wide Broadcast Network · AVideoversion=< 26.0

Published CVSS scores

5.5GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1552.005Cloud Instance Metadata API
T1046Network Service Discovery

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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