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CVE-2026-33039

Wwbn Avideo server-side request forgery (SSRF)

8.6 HIGHPublic exploitEPSS 0.46%
  1. Published20 Mar 2026

Description

WWBN AVideo is an open source video platform. In versions 25.0 and below, the plugin/LiveLinks/proxy.php endpoint validates user-supplied URLs against internal/private networks using isSSRFSafeURL(), but only checks the initial URL. When the initial URL responds with an HTTP redirect (Location header), the redirect target is fetched via fakeBrowser() without re-validation, allowing an attacker to reach internal services (cloud metadata, RFC1918 addresses) through an attacker-controlled redirect. This issue is fixed in version 26.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected products

Wwbn Avideo< 26.0

Remediation

Fixed in
Wwbn Avideo≥ 26.0

References

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Frequently asked

Is CVE-2026-33039 being actively exploited?

CVE-2026-33039 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.46%.

How severe is CVE-2026-33039?

CVE-2026-33039 has a CVSS 3.1 base score of 8.6, rated high. EPSS estimates a 0.46% probability of exploitation.

Which products are affected by CVE-2026-33039?

Affected products include Wwbn Avideo.

How do I fix CVE-2026-33039?

Upgrade affected software to a fixed version, for example Wwbn Avideo 26.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33039 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.