Disclosure of sensitive information in Horde Groupware_CVE-2025-41066

6.9 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2025-41066

Source INCIBE

Published Dec 2, 2025 at 14:01

Affected Product

Vendor Horde

Product Groupware

Version 5.2.22

Affected Versions Horde Groupware 5.2.22

CWE Classification

CWE-200

References

www.incibe.es /en/incibe-cert/notices/aviso/disclosure-sensitive-information-horde-groupware

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    "published": "2025-12-02T14:01:34.192Z",
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