AVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated LiveLinks Proxy
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.
Summary
WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `isSSRFSafeURL()` function in AVideo can be bypassed using IPv4-mapped IPv6 addresses (`::ffff:x.x.x.x`). The unauthenticated `plugin/LiveLinks/proxy.php` endpoint uses this function to validate URLs before fetching them with curl, but the IPv4-mapped IPv6 prefix passes all checks, allowing an attacker to access cloud metadata services, internal networks, and localhost services. Commit 75ce8a579a58c9d4c7aafe453fbced002cb8f373 contains a patch.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WWBN | AVideo | up to 26.0 | — | No fix listed | CNA |
| — | wwbn/avideo (Packagist) | up to 26.0 | — | No fix listed | GHSA-p3gr-g84w-g8hh |
- AVideo VendorWWBN Affected up to 26.0 Fixed in — No fix listed CNA
- wwbn/avideo (Packagist) Vendor— Affected up to 26.0 Fixed in — No fix listed GHSA-p3gr-g84w-g8hh
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-33480
- 2026-10-03 Alias added: GHSA-p3gr-g84w-g8hh
References
More WWBN Avideo vulnerabilities
- TI-2026-29567 Code injection in WWBN AVideo CVSS 3.1CRITICAL 10.0
- TI-2026-26095 AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in control.json.php CVSS 3.1CRITICAL 9.4
- TI-2026-25874 Improper access control in WWBN AVideo CVSS 3.1CRITICAL 10.0
- TI-2026-25758 AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escape Bypass) CVSS 3.1CRITICAL 9.8
- TI-2024-20951 An issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute… CVSS 3.1CRITICAL 9.8
- TI-2023-10706 OS injection vulnerability in World Wide Broadcast Network AVideo version before 12.4… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-33480 · CVE Program
- CVE-2026-33480 · NVD
- FIRST EPSS
- GHSA-p3gr-g84w-g8hh · GitHub Advisory Database · CC BY 4.0
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