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7.8
CVE-2026-91966: AVideo up to 29.0 allows network probing via host header
CVE-2026-91966 · published 1 month ago
Summary
AVideo versions up to 29.0 let anyone send specially crafted web requests that cause the server to contact other computers on your internal network. This can reveal internal services or data without needing a login. Update to the latest version or apply the vendor's configuration guidance and block unwanted external traffic.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| wwbn | avideo | <= 29.0 |
Original advisory text
AVideo through 29.0 Unauthenticated SSRF via Host Header
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.
References
- https://github.com/WWBN/AVideo/security/advisories/GHSA-rqg6-qcjv-55w5 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91966... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-91966 Vendor Advisory
- https://www.vulncheck.com/advisories/avideo-through-29.0-unauthenticated-ssrf-vi... Vendor Advisory
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically
- Gives an attacker partial control
Severity
7.8
High
Type
CWE-918Server-Side Request Forgery (SSRF)
Timeline
Published15 Sep 2026
Updated4 Nov 2026
First seen15 Sep 2026
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