# CVE-2026-84476 — WWBN AVideo

> As of 2026-09-02, CVE-2026-84476 is a HIGH-severity vulnerability in WWBN AVideo, CVSS v3.1 7.5, EPSS 0.2% (17.6th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-84476 as of 2026-09-02; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-02

## What is CVE-2026-84476?

WWBN AVideo fails to validate trusted proxies before accepting X-Real-IP and X-Forwarded-For headers, allowing attackers to spoof the client address used by enforceRateLimit(). Attackers can rotate the header value per request to bypass login rate limiting and perform unlimited credential guessing attacks.

The record classifies CVE-2026-84476 under weakness class [CWE-290](https://intel.threadlinqs.com/cwe/CWE-290). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 34 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **CVSS v4.0 base score:** 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 17.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-01, last modified 2026-09-02

## Is CVE-2026-84476 being exploited?

It currently carries a trending score of 34 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [WWBN](https://intel.threadlinqs.com/vendors/wwbn): AVideo

## How to fix CVE-2026-84476

No vendor patch reference has been recorded for CVE-2026-84476 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-84476

No threat campaign in the Threadlinqs corpus currently references CVE-2026-84476, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-09-03. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/WWBN/AVideo/security/advisories/GHSA-gg65-574p-h4wc)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/wwbn-avideo-authentication-bypass-via-x-real-ip-header)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-84476
Full detection coverage and IOCs for threats exploiting CVE-2026-84476 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp