Medium severity · published Sep 15, 2026
CVE-2026-91966
AVideo through 29.0 Unauthenticated SSRF via Host Header
5.8
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
AVideo · WWBN
through 29.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-91966
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-91966
github.com
https://github.com/WWBN/AVideo/security/advisories/GHSA-rqg6-qcjv-55w5
www.vulncheck.com
https://www.vulncheck.com/advisories/avideo-through-29.0-unauthenticated-ssrf-via-host-header
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