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Threats Tagged 'cve-2025-41066'

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Active filters (1):Tag: cve-2025-41066

Threats Tagged 'cve-2025-41066'

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CVE-2025-41066 is a user enumeration vulnerability in Horde Groupware version 5.2.22 that allows unauthenticated attackers to verify valid user accounts by sending crafted HTTP requests to the /imp/attachment.php endpoint. The server’s response behavior differs based on user existence, leaking sensitive information about valid usernames. This vulnerability has a CVSS score of 6.9 (medium severity) and requires no authentication or user interaction to exploit. While it does not directly allow access to data or system compromise, it facilitates reconnaissance that can be leveraged in further attacks such as phishing or brute force. No known exploits are currently reported in the wild. European organizations using Horde Groupware 5.

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