userSpice 4.3.24 contains a username enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by sending POST requests to the existingUsernameCheck.php endpoint. Attackers can submit usernames and analyze response text for the 'taken' string to identify existing accounts in the system.

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History

Tue, 26 May 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 25 May 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Userspice
Userspice userspice
Vendors & Products Userspice
Userspice userspice

Sat, 23 May 2026 18:45:00 +0000

Type Values Removed Values Added
Description userSpice 4.3.24 contains a username enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by sending POST requests to the existingUsernameCheck.php endpoint. Attackers can submit usernames and analyze response text for the 'taken' string to identify existing accounts in the system.
Title userSpice 4.3.24 Username Enumeration via existingUsernameCheck.php
Weaknesses CWE-204
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-26T13:27:55.786Z

Reserved: 2026-05-23T15:34:00.756Z

Link: CVE-2018-25350

cve-icon Vulnrichment

Updated: 2026-05-26T13:27:52.870Z

cve-icon NVD

Status : Deferred

Published: 2026-05-23T19:16:55.120

Modified: 2026-05-26T19:37:32.587

Link: CVE-2018-25350

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-25T11:33:27Z

Weaknesses