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CVE-2026-69091— Admidio before 5.0.11 Authentication Bypass via forum.php

Quick assessment

Affected
Admidio admidio
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Admidio是Admidio组织开源的一套成员管理系统。该系统支持成员列表、事件管理、留言簿、相册和下载等功能。 Admidio 5.0.11之前版本存在授权问题漏洞，该漏洞源于modules/forum.php中的访问控制逻辑未能验证login-only配置状态，可能导致未经身份验证的攻击者通过只读参数直接访问模块读取论坛主题和帖子。

CVSS 7.5 · High EPSS 0.61% · P47

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 2

VendorProduct Version RangeStatus
Admidio admidio < 5.0.11 affected
5.0.11 unaffected
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I. Basic Information for CVE-2026-69091

Vulnerability Information
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Vulnerability Title
Admidio before 5.0.11 Authentication Bypass via forum.php
Source: CVE Program / CVE List V5
Vulnerability Description
Admidio before 5.0.11 contains an authentication bypass vulnerability in the forum module when configured in login-only mode. The access control logic in modules/forum.php fails to validate the login-only configuration state, allowing unauthenticated attackers to read forum topics and posts by directly accessing the module with read-only parameters.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Admidio 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Admidio是Admidio组织开源的一套成员管理系统。该系统支持成员列表、事件管理、留言簿、相册和下载等功能。 Admidio 5.0.11之前版本存在授权问题漏洞，该漏洞源于modules/forum.php中的访问控制逻辑未能验证login-only配置状态，可能导致未经身份验证的攻击者通过只读参数直接访问模块读取论坛主题和帖子。
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
Admidio admidio 0 ~ 5.0.11 -

II. Public POCs for CVE-2026-69091

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: unauthenticated GET /modules/forum.php?mode=cards leaked forum topic "SECRET-TOKEN-PROOF_e7f6dae813339284" through login-only auth bypass (PROOF_e7f6dae813339284)
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 9146 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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III. Intelligence Information for CVE-2026-69091

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Vendor Advisories for CVE-2026-69091 (2)

Same Patch Batch · Admidio · 2026-08-03 · 5 CVEs total

CVE-2026-69092 6.5 MEDIUM Admidio before 5.0.11 Reflected XSS via SSO/SAML Endpoint
CVE-2026-69090 4.9 MEDIUM Admidio before 5.0.11 Cross-Organization Role Modification
CVE-2026-69093 4.6 MEDIUM Admidio before 5.0.11 CSRF via category-report preferences
CVE-2026-69094 4.3 MEDIUM Admidio before 5.0.11 IDOR via save_temporary mylist_function.php

IV. Related Vulnerabilities

Same product: admidio
Same vendor: Admidio
Same weakness: CWE-306

V. Comments for CVE-2026-69091

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