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CVE-2026-41656— Admidio: Path Traversal via Unvalidated `name` Parameter in Document Add Mode Enables Arbitrary Server File Read

Quick assessment

Affected
Admidio admidio
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.

Admidio是Admidio团队的一套开源的成员管理系统。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 5.0.9之前版本存在路径遍历漏洞，该漏洞源于modules/documents-files.php的添加模式仅验证name参数为字符串类型，允许路径遍历字符通过，且端点缺乏CSRF保护，可能导致低权限攻击者诱骗文档管理员注册任意服务器文件。

CVSS 4.5 · Medium EPSS 0.43% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
Admidio admidio < 5.0.9 affected
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I. Basic Information for CVE-2026-41656

Vulnerability Information
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Vulnerability Title
Admidio: Path Traversal via Unvalidated `name` Parameter in Document Add Mode Enables Arbitrary Server File Read
Source: CVE Program / CVE List V5
Vulnerability Description
Admidio is an open-source user management solution. Prior to version 5.0.9, the add mode in modules/documents-files.php accepts a name parameter validated only as 'string' type (HTML encoding), allowing path traversal characters (../) to pass through unfiltered. Combined with the absence of CSRF protection on this endpoint and SameSite=Lax session cookies, a low-privileged attacker can trick a documents administrator into clicking a crafted link that registers an arbitrary server file (e.g., install/config.php containing database credentials) into a documents folder accessible to the attacker. This issue has been patched in version 5.0.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Admidio 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Admidio是Admidio团队的一套开源的成员管理系统。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 5.0.9之前版本存在路径遍历漏洞，该漏洞源于modules/documents-files.php的添加模式仅验证name参数为字符串类型，允许路径遍历字符通过，且端点缺乏CSRF保护，可能导致低权限攻击者诱骗文档管理员注册任意服务器文件。
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 < 5.0.9 -

II. Public POCs for CVE-2026-41656

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III. Intelligence Information for CVE-2026-41656

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Vendor Advisories for CVE-2026-41656 (1)

Vendor Pages for CVE-2026-41656 (1)

Same Patch Batch · Admidio · 2026-05-07 · 13 CVEs total

CVE-2026-41669 8.2 HIGH Admidio: SAML Signature Validation Result Ignored — Forged AuthnRequests and LogoutRequest
CVE-2026-41670 8.2 HIGH Admidio: SAML Response Sent to Unvalidated Assertion Consumer Service URL from AuthnReques
CVE-2026-41660 7.1 HIGH Admidio: Inverted 2FA Reset Authorization Check Lets Group Leaders Strip Admin TOTP
CVE-2026-41671 6.8 MEDIUM Admidio: OIDC Token Introspection Endpoint Returns Active for All Tokens Without Validatio
CVE-2026-42194 6.8 MEDIUM Incomplete fix for CVE-2026-32812: SSRF in admidio
CVE-2026-41658 6.5 MEDIUM Admidio: Missing Authorization on Inventory Module Destructive Endpoints Allows Any Authen
CVE-2026-41655 6.5 MEDIUM Admidio: Path Traversal in ECard Preview Allows Reading Arbitrary Server Files Including D
CVE-2026-41661 6.1 MEDIUM Admidio: Reflected XSS in msg_window.php via Square Bracket to HTML Tag Conversion
CVE-2026-41662 5.2 MEDIUM Admidio: Missing Minimum Administrator Check in Role Membership Removal
CVE-2026-41657 4.9 MEDIUM Admidio: Cross-Organization Member Data Exposure via Permission Check Mismatch in contacts
CVE-2026-41663 3.5 LOW Admidio: CSRF on Admin Preferences Triggers Unauthorized Backup, .htaccess Write, and Emai
CVE-2026-41659 2.7 LOW Admidio: Hidden Profile Field Values Leaked via Blind Search Oracle in Member Assignment

IV. Related Vulnerabilities

Same product: admidio
Same vendor: Admidio
Same weakness: CWE-22

V. Comments for CVE-2026-41656

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