CVE-2026-41062: WWBN/AVideo has an incomplete fix for a directory traversal bypass via query string in ReceiveImage downloadURL parameters
WWBN AVideo is an open source video platform. In versions 29.0 and below, the directory traversal fix introduced in commit 2375eb5e0 for objects/aVideoEncoderReceiveImage.json.php only checks the URL path component (via parseurl($url, PHPURLPATH)) for .. sequences. However, the downstream function trygetcontentsfromlocal() in objects/functionsFile.php uses explode('/videos/', $url) on the full URL string including the query string. An attacker can place the /videos/../../ traversal payload in the query string to bypass the security check and read arbitrary files from the server filesystem. Commit bd11c16ec894698e54e2cdae25026c61ad1ed441 contains an updated fix.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-41062?
The severity of CVE-2026-41062 is considered high due to its potential for directory traversal exploitation.
How do I fix CVE-2026-41062?
To fix CVE-2026-41062, upgrade your AVideo installation to version 29.1 or later where the vulnerability is fully patched.
What versions of AVideo are affected by CVE-2026-41062?
AVideo versions 29.0 and below are affected by CVE-2026-41062.
What is the nature of the vulnerability in CVE-2026-41062?
CVE-2026-41062 is a directory traversal bypass vulnerability that can be exploited via query string manipulation.
Can CVE-2026-41062 lead to unauthorized file access?
Yes, exploitation of CVE-2026-41062 can potentially allow attackers to access sensitive files on the server.