Authenticated internal-network probing via unvalidated header requests
Published Sep 15, 2026 · Updated Sep 15, 2026
Blind SSRF in WWBN AVideo 29.0 and earlier allows remote authenticated users to probe internal hosts through stored video links. The getHeaderContentTypeFromURL function passes attacker-chosen URLs to get_headers() after checking only their format, exposing response content types and request timing. Upload permission is required to store a link, and each later watch-page render repeats the server-side request, revealing internal host reachability without returning response bodies.
Summary
What happened
Blind SSRF in WWBN AVideo 29.0 and earlier allows remote authenticated users to probe internal hosts through stored video links. The getHeaderContentTypeFromURL function passes attacker-chosen URLs to get_headers() after checking only their format, exposing response content types and request timing. Upload permission is required to store a link, and each later watch-page render repeats the server-side request, revealing internal host reachability without returning response bodies.
The record
- CVE
- CVE-2026-91967
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Vendor
- WWBN
- Product
- AVideo
- Classifications
- CWE-918, T1046
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- Sep 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=29.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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