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CVE-2025-9824— User Enumeration via Response Timing

Quick assessment

Affected
Mautic Mautic
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.

Mautic是Mautic开源的一款开源的营销自动化软件。该软件能够监控管理网站、发送电子邮件并管理客户资源。 Mautic存在安全漏洞，该漏洞源于登录返回时间差异，可能导致用户名枚举和暴力破解攻击。

CVSS 5.9 · Medium EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2025-9824

Vulnerability Information
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Vulnerability Title
User Enumeration via Response Timing
Source: CVE Program / CVE List V5
Vulnerability Description
ImpactThe attacker can validate if a user exists by checking the time login returns. This timing difference can be used to enumerate valid usernames, after which an attacker could attempt brute force attacks. PatchesThis vulnerability has been patched, implementing a timing-safe form login authenticator that ensures consistent response times regardless of whether a user exists or not. Technical DetailsThe vulnerability was caused by different response times when: * A valid username was provided (password hashing occurred) * An invalid username was provided (no password hashing occurred) The fix introduces a TimingSafeFormLoginAuthenticator that performs a dummy password hash verification even for non-existent users, ensuring consistent timing. WorkaroundsNo workarounds are available. Users should upgrade to the patched version. References * https://owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/03-Identity_Management_Testing/04-Testing_for_Account_Enumeration_and_Guessable_User_Account
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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
Mautic 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mautic是Mautic开源的一款开源的营销自动化软件。该软件能够监控管理网站、发送电子邮件并管理客户资源。 Mautic存在安全漏洞，该漏洞源于登录返回时间差异，可能导致用户名枚举和暴力破解攻击。
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
Mautic Mautic >= 4.4.0 ~ < 4.4.17 -

II. Public POCs for CVE-2025-9824

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III. Intelligence Information for CVE-2025-9824

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Vendor Advisories for CVE-2025-9824 (1)

Same Patch Batch · Mautic · 2025-09-03 · 4 CVEs total

CVE-2025-9822 5.5 MEDIUM Secret data extraction via elfinder
CVE-2025-9821 2.7 LOW SSRF via webhook function
CVE-2025-9823 Reflected XSS in lead:addLeadTags - Quick Add

IV. Related Vulnerabilities

Same product: Mautic
Same vendor: Mautic
Same weakness: CWE-204

V. Comments for CVE-2025-9824

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