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CVE-2018-25350— userSpice 4.3.24 Username Enumeration via existingUsernameCheck.php

Quick assessment

Affected
UserSpice userSpice
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UserSpice是UserSpice开源的一个PHP用户管理与身份认证框架。 userSpice 4.3.24版本存在安全漏洞，该漏洞源于用户名枚举，可能导致未经身份验证的攻击者通过发送POST请求发现有效用户名。

CVSS 9.8 · Critical EPSS 0.43% · P38

Possible ATT&CK Techniques 1 AI

T1087.004 · Cloud Account

Affected Version Matrix 1

VendorProduct Version RangeStatus
UserSpice userSpice 4.3.24 affected
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I. Basic Information for CVE-2018-25350

Vulnerability Information
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Vulnerability Title
userSpice 4.3.24 Username Enumeration via existingUsernameCheck.php
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
UserSpice 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UserSpice是UserSpice开源的一个PHP用户管理与身份认证框架。 userSpice 4.3.24版本存在安全漏洞，该漏洞源于用户名枚举，可能导致未经身份验证的攻击者通过发送POST请求发现有效用户名。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
UserSpice userSpice 4.3.24 -

II. Public POCs for CVE-2018-25350

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III. Intelligence Information for CVE-2018-25350

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Vendor Advisories for CVE-2018-25350 (1)

Exploits & Public PoCs for CVE-2018-25350 (1)

IV. Related Vulnerabilities

Same product: userSpice
Same vendor: UserSpice
Same weakness: CWE-204