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CVE-2025-13473— Username enumeration through timing difference in mod_wsgi authentication handler

Quick assessment

Affected
djangoproject Django
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.

Django是Django基金会的一套基于Python语言的开源Web应用框架。该框架包括面向对象的映射器、视图系统、模板系统等。 Django 6.0.2之前版本、5.2.11之前版本和4.2.28之前版本存在安全漏洞，该漏洞源于django.contrib.auth.handlers.modwsgi.check_password函数存在时序攻击，可能导致用户枚举。

AI Predicted 5.3 Difficulty: Easy EPSS 0.81% · P55

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2025-13473

Vulnerability Information
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Vulnerability Title
Username enumeration through timing difference in mod_wsgi authentication handler
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. The `django.contrib.auth.handlers.modwsgi.check_password()` function for authentication via `mod_wsgi` allows remote attackers to enumerate users via a timing attack. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Stackered for reporting this issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Django 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Django是Django基金会的一套基于Python语言的开源Web应用框架。该框架包括面向对象的映射器、视图系统、模板系统等。 Django 6.0.2之前版本、5.2.11之前版本和4.2.28之前版本存在安全漏洞，该漏洞源于django.contrib.auth.handlers.modwsgi.check_password函数存在时序攻击，可能导致用户枚举。
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
djangoproject Django 6.0 ~ 6.0.2 -

II. Public POCs for CVE-2025-13473

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III. Intelligence Information for CVE-2025-13473

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Vendor Advisories for CVE-2025-13473 (1)

Mailing List Discussions for CVE-2025-13473 (1)

Security Blog Posts for CVE-2025-13473 (1)

Same Patch Batch · djangoproject · 2026-02-03 · 6 CVEs total

CVE-2026-1287 Potential SQL injection in column aliases via control characters
CVE-2026-1285 Potential denial-of-service vulnerability in django.utils.text.Truncator HTML methods
CVE-2026-1207 Potential SQL injection via raster lookups on PostGIS
CVE-2026-1312 Potential SQL injection via QuerySet.order_by and FilteredRelation
CVE-2025-14550 Potential denial-of-service vulnerability via repeated headers when using ASGI

IV. Related Vulnerabilities

Same product: Django
Same vendor: djangoproject
Same weakness: CWE-208

V. Comments for CVE-2025-13473

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