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CVE-2025-41066— Disclosure of sensitive information in Horde Groupware

Quick assessment

Affected
Horde Groupware
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.

Horde Groupware是Horde开源的一个协作软件套件。 Horde Groupware v5.2.22版本存在信息泄露漏洞，该漏洞源于未经验证的攻击者可通过发送HTTP请求确定有效账户是否存在。

AI Predicted 3.7 Difficulty: Easy EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1087.001 · Local Account
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I. Basic Information for CVE-2025-41066

Vulnerability Information
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Vulnerability Title
Disclosure of sensitive information in Horde Groupware
Source: CVE Program / CVE List V5
Vulnerability Description
Horde Groupware v5.2.22 has a user enumeration vulnerability that allows an unauthenticated attacker to determine the existence of valid accounts on the system. To exploit the vulnerability, an HTTP request must be sent to ‘/imp/attachment.php’ including the parameters ‘id’ and ‘u’. If the specified user exists, the server will return the download of an empty file; if it does not exist, no download will be initiated, which unequivocally reveals the validity of the user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Horde Groupware 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Horde Groupware是Horde开源的一个协作软件套件。 Horde Groupware v5.2.22版本存在信息泄露漏洞，该漏洞源于未经验证的攻击者可通过发送HTTP请求确定有效账户是否存在。
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
Horde Groupware 5.2.22 -

II. Public POCs for CVE-2025-41066

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III. Intelligence Information for CVE-2025-41066

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Other References for CVE-2025-41066 (1)

IV. Related Vulnerabilities

Same vendor: Horde
Same weakness: CWE-200

V. Comments for CVE-2025-41066

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