How severe is CVE-2026-33649?

CVE-2026-33649 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-33649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33649?

CVE-2026-33649 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33649?

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

Does CVE-2026-33649 have an EU (EUVD) identifier?

Yes. CVE-2026-33649 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14486.

When was CVE-2026-33649 published?

CVE-2026-33649 was published on 2026-03-23 and last updated on 2026-06-17.

CVE-2026-33649

CVE-2026-33649 is a high-severity vulnerability in Wwbn Avideo with a CVSS 3.x base score of 8.1. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14486
Weakness: CWE-352
Affected product: Wwbn Avideo
Published: 2026-03-23
Last modified: 2026-06-17

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Permissions/setPermission.json.php` endpoint accepts GET parameters for a state-changing operation that modifies user group permissions. The endpoint has no CSRF token validation, and the application explicitly sets `session.cookie_samesite=None` on session cookies. This allows an unauthenticated attacker to craft a page with `<img>` tags that, when visited by an admin, silently grant arbitrary permissions to the attacker's user group — escalating the attacker to near-admin access. As of time of publication, no known patched versions are available.

Frequently asked questions

What is CVE-2026-33649?: WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `plugin/Permissions/setPermission.json.php` endpoint accepts GET parameters for a state-changing operation that modifies user group permissions. The endpoint has no CSRF token validation, and the application explicitly sets `session.cookie_samesite=None` on session cookies. This allows an unauthenticated attacker to craft a page with `<img>` tags that, when visited by an admin, silently grant arbitrary permissions to the attacker's user group — escalating the attacker to near-admin access. As of time of publication, no known patched versions are available.
How severe is CVE-2026-33649?: CVE-2026-33649 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-33649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33649?: CVE-2026-33649 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33649 have an EU (EUVD) identifier?: Yes. CVE-2026-33649 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14486.
When was CVE-2026-33649 published?: CVE-2026-33649 was published on 2026-03-23 and last updated on 2026-06-17.

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj

Affected products (1)

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

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