How severe is CVE-2026-33351?

CVE-2026-33351 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-33351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33351?

CVE-2026-33351 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33351?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-33351 have an EU (EUVD) identifier?

Yes. CVE-2026-33351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20073.

When was CVE-2026-33351 published?

CVE-2026-33351 was published on 2026-03-23 and last updated on 2026-06-17.

CVE-2026-33351

CVE-2026-33351 is a critical-severity vulnerability in Wwbn Avideo with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20073
Weakness: CWE-918
Affected product: Wwbn Avideo
Published: 2026-03-23
Last modified: 2026-06-17

Description

WWBN AVideo is an open source video platform. Prior to version 26.0, a Server-Side Request Forgery (SSRF) vulnerability exists in `plugin/Live/standAloneFiles/saveDVR.json.php`. When the AVideo Live plugin is deployed in standalone mode (the intended configuration for this file), the `$_REQUEST['webSiteRootURL']` parameter is used directly to construct a URL that is fetched server-side via `file_get_contents()`. No authentication, origin validation, or URL allowlisting is performed. Version 26.0 contains a patch for the issue.

Frequently asked questions

What is CVE-2026-33351?: WWBN AVideo is an open source video platform. Prior to version 26.0, a Server-Side Request Forgery (SSRF) vulnerability exists in `plugin/Live/standAloneFiles/saveDVR.json.php`. When the AVideo Live plugin is deployed in standalone mode (the intended configuration for this file), the `$_REQUEST['webSiteRootURL']` parameter is used directly to construct a URL that is fetched server-side via `file_get_contents()`. No authentication, origin validation, or URL allowlisting is performed. Version 26.0 contains a patch for the issue.
How severe is CVE-2026-33351?: CVE-2026-33351 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-33351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33351?: CVE-2026-33351 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33351?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-33351 have an EU (EUVD) identifier?: Yes. CVE-2026-33351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20073.
When was CVE-2026-33351 published?: CVE-2026-33351 was published on 2026-03-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*

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