SSRF in WWBN AVideo LiveLinks proxy via IPv4-mapped IPv6 bypass
CVE-2026-33480 is a server-side request forgery vulnerability in WWBN AVideo affecting versions up to and including 26.0. The flaw is in the URL validation logic implemented by isSSRFSafeURL(), which can be bypassed by supplying IPv4-mapped IPv6 addresses in the form ::ffff:x.x.x.x. The unauthenticated endpoint plugin/LiveLinks/proxy.php relies on this function to determine whether a user-supplied URL is safe before retrieving it with curl. Because the IPv4-mapped IPv6 prefix is not properly rejected, an attacker can cause the server to issue requests to destinations that should be blocked, including localhost, internal network hosts, and cloud instance metadata endpoints. A patch is referenced in commit 75ce8a579a58c9d4c7aafe453fbced002cb8f373.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
plugin/LiveLinks/proxy.php endpoint, especially from untrusted networks. Apply outbound network egress controls so the AVideo host cannot reach cloud metadata services, localhost-only administrative interfaces, or internal/private address ranges unless explicitly required. Additional compensating controls include blocking requests to metadata IPs and equivalent IPv6 forms, and placing the application behind filtering that prevents user-controlled URL fetches to sensitive destinations.Remediation
Patch, then assume compromise.
75ce8a579a58c9d4c7aafe453fbced002cb8f373, which should be included in the deployed version. Validate that all URL parsing and SSRF protections correctly normalize and reject IPv4-mapped IPv6 representations when enforcing restrictions on localhost, link-local, metadata, and private/internal address space.Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.