HOMEVULNERABILITIESCVE-2026-33649
HIGH

CVE-2026-33649

CWE-352Published: March 23, 2026· Updated: Mar 25, 2026

8.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:2.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-33649 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

wwbn1 product
avideo
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2026-33649
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-352
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMar 23, 2026

Related CVEs (CWE-352)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-33649 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
CVE-2026-33649 — CVSS 8.8 HIGH | CTIWATCH.COM