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CVE-2026-33043

Wwbn Avideo vulnerability

8.1 HIGHPublic exploitEPSS 0.39%
  1. Published20 Mar 2026

Description

WWBN AVideo is an open source video platform. In versions 25.0 and below, /objects/phpsessionid.json.php exposes the current PHP session ID to any unauthenticated request. The allowOrigin() function reflects any Origin header back in Access-Control-Allow-Origin with Access-Control-Allow-Credentials: true, enabling cross-origin session theft and full account takeover. This issue has been fixed in version 26.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

Wwbn Avideo< 26.0

Remediation

Fixed in
Wwbn Avideo≥ 26.0

References

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Frequently asked

Is CVE-2026-33043 being actively exploited?

CVE-2026-33043 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2026-33043?

CVE-2026-33043 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2026-33043?

Affected products include Wwbn Avideo.

How do I fix CVE-2026-33043?

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-2026-33043 against the real software inventory on every managed device, as each hourly inventory arrives. 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.