CVE-2026-43884

HIGH

WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.7
EPSS 0.0001
EPSS Percentile 1.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-918
Status published
Products (2)
wwbn/avideo 0 - 29.0Packagist
WWBN/AVideo <= 29.0
Published May 11, 2026
Tracked Since May 12, 2026