CVE-2025-32873
Django Slow Denial-of-Service Vulnerability in HTML Tag Processing
Description
An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().
INFO
Published Date :
May 8, 2025, 4:17 a.m.
Last Modified :
June 17, 2025, 7:44 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2025-32873 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-32873.
| URL | Resource |
|---|---|
| https://docs.djangoproject.com/en/dev/releases/security/ | Release Notes |
| https://groups.google.com/g/django-announce | Mailing List |
| https://www.djangoproject.com/weblog/2025/may/07/security-releases/ | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/05/07/1 | Mailing List Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Django Security Issue (CVE-2025-32873)
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-32873 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-32873 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jun. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (excluding) 4.2.21 *cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.1.9 *cpe:2.3:a:djangoproject:django:5.2:*:*:*:*:*:*:* Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2025/05/07/1 Types: Mailing List, Third Party Advisory Added Reference Type MITRE: https://docs.djangoproject.com/en/dev/releases/security/ Types: Release Notes Added Reference Type MITRE: https://groups.google.com/g/django-announce Types: Mailing List Added Reference Type MITRE: https://www.djangoproject.com/weblog/2025/may/07/security-releases/ Types: Vendor Advisory -
New CVE Received by [email protected]
May. 08, 2025
Action Type Old Value New Value Added Description An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags(). Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-770 Added Reference https://docs.djangoproject.com/en/dev/releases/security/ Added Reference https://groups.google.com/g/django-announce Added Reference https://www.djangoproject.com/weblog/2025/may/07/security-releases/ -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
May. 08, 2025
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2025/05/07/1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-32873 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-32873
weaknesses.