---
id: CVE-2026-84483
title: >-
  WWBN AVideo through commit 9c39d8c8 contains an incomplete authentication
  bypass in encryptPass.json.php that allows unauthenticated attackers to
  compute valid HMAC tokens using the public site URL and current time
summary: >-
  WWBN AVideo through commit 9c39d8c8 contains an incomplete authentication
  bypass in encryptPass.json.php that allows unauthenticated attackers to
  compute valid HMAC tokens using the public site URL and current time.
  Attackers can forge a…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-321
published: '2026-09-01'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:18:59.270'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84483'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-q92q-q2f7-v4fc'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wwbn-avideo-unauthenticated-password-hash-oracle-via-encryptpass-json-php
    label: disclosure@vulncheck.com
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-q92q-q2f7-v4fc'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00265
epssPercentile: 0.18657
ingestedAt: '2026-09-08T21:11:12.289Z'
---

## Overview

WWBN AVideo through commit 9c39d8c8 contains an incomplete authentication bypass in encryptPass.json.php that allows unauthenticated attackers to compute valid HMAC tokens using the public site URL and current time. Attackers can forge authentication tokens by computing hash_hmac with the site's base URL as the key and submit arbitrary passwords to receive encrypted hashes, enabling offline precomputation attacks against stolen password databases.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.