Unauthenticated SSRF via unvalidated redirect target
Published Mar 20, 2026 · Updated Mar 20, 2026
SSRF in the LiveLinks proxy in WWBN AVideo before 26.0 allows remote attackers to read internal HTTP resources through a redirect. The endpoint checks only the initial livelink URL, then passes an attacker-controlled Location value to fakeBrowser() without repeating the private-network check. No authentication or user interaction is required; the server returns GET responses from reachable RFC1918 services or cloud metadata endpoints.
Summary
What happened
SSRF in the LiveLinks proxy in WWBN AVideo before 26.0 allows remote attackers to read internal HTTP resources through a redirect. The endpoint checks only the initial livelink URL, then passes an attacker-controlled Location value to fakeBrowser() without repeating the private-network check. No authentication or user interaction is required; the server returns GET responses from reachable RFC1918 services or cloud metadata endpoints.
The record
- CVE
- CVE-2026-33039
- Published
- Mar 20, 2026
- Updated
- Mar 20, 2026
- Vendor
- World Wide Broadcast Network
- Product
- AVideo
- Classifications
- CWE-918, T1552.005, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 20, 2026CVE publishedPublication date reported by the CVE source.
- Mar 20, 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=< 26.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- LiveLinks redirect SSRF proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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