CVE-2026-33649
AVideo's GET-Based CSRF in setPermission.json.php Enables Privilege Escalation via Arbitrary Permission Modification
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.
INFO
Published Date :
March 23, 2026, 7:16 p.m.
Last Modified :
March 25, 2026, 2:54 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Add CSRF token validation to the endpoint.
- Configure SameSite attribute to Lax or Strict.
- Update the application to the latest version.
- Apply vendor patches when available.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33649.
| URL | Resource |
|---|---|
| https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj | Exploit Vendor Advisory |
| https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33649 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33649
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33649 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-33649 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:* versions up to (including) 26.0 Added Reference Type GitHub, Inc.: https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 24, 2026
Action Type Old Value New Value Added Reference https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj -
New CVE Received by [email protected]
Mar. 23, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Added CWE CWE-352 Added Reference https://github.com/WWBN/AVideo/security/advisories/GHSA-g8x9-7mgh-7cvj