WWBN AVideo up to 29.0 HTTP Host Header Processing submitIndex.php check_site_availability server-side request forgery

Summaryinfo

A vulnerability categorized as critical has been discovered in WWBN AVideo up to 29.0. Affected by this vulnerability is the function check_site_availability of the file submitIndex.php of the component HTTP Host Header Processing. Executing a manipulation of the argument Host can lead to server-side request forgery. This vulnerability is tracked as CVE-2026-91966. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in WWBN AVideo up to 29.0. This vulnerability affects the function check_site_availability of the file submitIndex.php of the component HTTP Host Header Processing. The manipulation of the argument Host with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

AVideo through 29.0 contains an unauthenticated server-side request forgery vulnerability in the check_site_availability function that accepts attacker-controlled HTTP Host headers. Attackers can send requests to submitIndex.php or ajax.php with arbitrary Host headers to probe internal network hosts and ports, following redirects without authentication.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-91966 since 09/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/15/2026).

By approaching the search of inurl:submitIndex.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• WWBN

Name

• AVideo

Version

• 29.0

License

• open-source

Website

• Product: https://github.com/WWBN/AVideo/

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