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Vulnerability Details :

CVE-2018-25350

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-23 May, 2026 | 18:30
Updated At-23 May, 2026 | 18:30
Rejected At-
Credits

userSpice 4.3.24 Username Enumeration via existingUsernameCheck.php

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:23 May, 2026 | 18:30
Updated At:23 May, 2026 | 18:30
Rejected At:
▼CVE Numbering Authority (CNA)
userSpice 4.3.24 Username Enumeration via existingUsernameCheck.php

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.

Affected Products
Vendor
UserSpice
Product
userSpice
Versions
Affected
  • 4.3.24
Problem Types
TypeCWE IDDescription
CWECWE-204Observable Response Discrepancy
Type: CWE
CWE ID: CWE-204
Description: Observable Response Discrepancy
Metrics
VersionBase scoreBase severityVector
4.09.3CRITICAL
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
3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 4.0
Base score: 9.3
Base severity: CRITICAL
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
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Dolev Farhi
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.exploit-db.com/exploits/44872
exploit
https://www.vulncheck.com/advisories/userspice-username-enumeration-via-existingusernamecheck-php
third-party-advisory
Hyperlink: https://www.exploit-db.com/exploits/44872
Resource:
exploit
Hyperlink: https://www.vulncheck.com/advisories/userspice-username-enumeration-via-existingusernamecheck-php
Resource:
third-party-advisory
Information is not available yet

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