High severity · published Mar 23, 2026
CVE-2026-33719
AVideo Vulnerable to Unauthenticated CDN Configuration Takeover via Empty Default Key Bypass and Mass-Assignment in status.json.php
8.6
CVSS
0.4%
EPSS
No
On KEV
Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the CDN plugin endpoints `plugin/CDN/status.json.php` and `plugin/CDN/disable.json.php` use key-based authentication with an empty string default key. When the CDN plugin is enabled but the key has not been configured (the default state), the key validation check is completely bypassed, allowing any unauthenticated attacker to modify the full CDN configuration — including CDN URLs, storage credentials, and the authentication key itself — via mass-assignment through the `par` request parameter. Commit adeff0a31ba04a56f411eef256139fd7ed7d4310 contains a patch.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
AVideo · WWBN
<= 26.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33719
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33719
Patch
https://github.com/WWBN/AVideo/commit/adeff0a31ba04a56f411eef256139fd7ed7d4310
Exploit
https://github.com/WWBN/AVideo/security/advisories/GHSA-r64r-883r-wcwh
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