CVE-2025-41066 — Disclosure of sensitive information in Horde Groupware
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 v…
Published: 2025-12-02 · CVSS: 6.9 · CVSS 4.0
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 · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7