High severity · published May 11, 2026
CVE-2026-43884
WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()
7.7
CVSS
0.3%
EPSS
No
On KEV
Description
WWBN AVideo is an open source video platform. In versions up to and including 29.0, two endpoints (plugin/AI/receiveAsync.json.php and objects/EpgParser.php) in AVideo call isSSRFSafeURL() to validate user-supplied URLs, then fetch them using bare file_get_contents() without disabling PHP's automatic redirect following. An attacker can supply a URL pointing to a server they control that returns a 302 redirect to an internal/cloud-metadata address (e.g., http://169.254.169.254/latest/meta-data/). Since isSSRFSafeURL() only validates the initial URL, the redirect target bypasses all SSRF protections. Commit 603e7bf77a835584387327e35560262feb075db3 contains an updated fix.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
AVideo · WWBN
<= 29.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43884
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43884
github.com
https://github.com/WWBN/AVideo/commit/603e7bf77a835584387327e35560262feb075db3
github.com
https://github.com/WWBN/AVideo/security/advisories/GHSA-2hch-c97c-g99x
github.com
https://github.com/WWBN/AVideo/security/advisories/GHSA-2hch-c97c-g99xg
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