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CVE-2026-84483— WWBN AVideo Unauthenticated Password Hash Oracle via encryptPass.json.php

Quick assessment

Affected
WWBN AVideo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WWBN AVideo是WWBN组织开源的一个视频分享与内容管理平台。 WWBN AVideo 9c39d8c8及之前版本存在加密问题漏洞，该漏洞源于encryptPass.json.php存在不完整的身份验证绕过，允许未经身份验证的攻击者使用公开站点URL和当前时间计算有效的HMAC令牌，从而伪造认证令牌并提交任意密码获取加密哈希，可能导致对窃取的密码数据库进行离线预计算攻击。

CVSS 5.3 · Medium EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo ≤ 9c39d8c8b4c1f75540788d6b391740852ceb0732 affected
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I. Basic Information for CVE-2026-84483

Vulnerability Information
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Vulnerability Title
WWBN AVideo Unauthenticated Password Hash Oracle via encryptPass.json.php
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN AVideo是WWBN组织开源的一个视频分享与内容管理平台。 WWBN AVideo 9c39d8c8及之前版本存在加密问题漏洞，该漏洞源于encryptPass.json.php存在不完整的身份验证绕过，允许未经身份验证的攻击者使用公开站点URL和当前时间计算有效的HMAC令牌，从而伪造认证令牌并提交任意密码获取加密哈希，可能导致对窃取的密码数据库进行离线预计算攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WWBN AVideo 0 ~ 9c39d8c8b4c1f75540788d6b391740852ceb0732 -

II. Public POCs for CVE-2026-84483

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-84483

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Vendor Advisories for CVE-2026-84483 (2)

Same Patch Batch · WWBN · 2026-09-01 · 11 CVEs total

CVE-2026-84480 9.8 CRITICAL WWBN AVideo Password Recovery Token Expiration Bypass
CVE-2026-84479 9.1 CRITICAL WWBN AVideo Authentication Bypass via User-Agent Header
CVE-2026-84482 8.8 HIGH WWBN AVideo Cross-Site Request Forgery via get_domain() validation
CVE-2026-84187 8.2 HIGH AVideo on_publish.php Missing Authentication Check via RTMP Callback
CVE-2026-83595 8.1 HIGH AVideo Cross-Site Request Forgery via plugin/API/set.json.php
CVE-2026-84208 7.5 HIGH AVideo User_Location Plugin Unauthenticated SQL Injection
CVE-2026-84476 7.5 HIGH WWBN AVideo Authentication Bypass via X-Real-IP Header
CVE-2026-84478 7.3 HIGH WWBN AVideo Unauthenticated Arbitrary Log File Deletion
CVE-2026-84481 6.9 MEDIUM WWBN AVideo through 30.0 Information Disclosure via MobileManager
CVE-2026-84477 5.4 MEDIUM AVideo Stored XSS via Live Schedule Title Description

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-321

V. Comments for CVE-2026-84483

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