CVE-2026-43884
HIGHWWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/WWBN/AVideo/security/advisories/GHSA-2hch-c97c-g99x
X_Refsource_Misc x_refsource_misc
https://github.com/WWBN/AVideo/commit/603e7bf77a835584387327e35560262feb075db3
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