PT-2025-48687 · Horde+1 · Horde Groupware+1

Amador Aparicio · Published 2025-12-02 · Updated 2025-12-02 · CVE-2025-41066

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Horde Groupware version 5.2.22

Description An unauthenticated attacker can determine the existence of valid accounts on the system. This is achieved by sending an HTTP request to the ''/imp/attachment.php'' endpoint with the parameters id and u. If the specified user exists, the server returns the download of an empty file. If the user does not exist, no download is initiated, revealing whether the user is valid.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2025-41066

Affected Products

Debian

Horde Groupware

References · 6

• https://osv.dev/vulnerability/DEBIAN-CVE-2025-41066 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-41066 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-41066 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-41066 · Vendor Advisory
• https://incibe.es/en/incibe-cert/notices/aviso/disclosure-sensitive-information-horde-groupware · Note
• https://twitter.com/CVEnew/status/1995860134057095271 · Twitter Post