Django 3.2/4.x Truncator DoS via html=True (pre5.0)
CVE-2023-43665 Published on November 3, 2023

In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.

Vendor Advisory Vendor Advisory NVD


Products Associated with CVE-2023-43665

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Canonical Ubuntu Linux
 
Django Project Django
 
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Exploit Probability

EPSS
2.87%
Percentile
86.07%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.