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I. Basic Information for CVE-2025-66510
Vulnerability Information

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Vulnerability Title
Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
侵犯隐私
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nextcloud Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud Server是Nextcloud开源的一个Nextcloud服务器程序。 Nextcloud Server存在安全漏洞,该漏洞源于联系人搜索功能访问控制不当,可能导致信息泄露。
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
VendorProductAffected VersionsCPESubscribe
nextcloudsecurity-advisories >= 32.0.0beta1, < 32.0.1 -
II. Public POCs for CVE-2025-66510
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III. Intelligence Information for CVE-2025-66510
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IV. Related Vulnerabilities
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