CVE-2021-39286

MEDIUM

pywb < 2.6.0 - Cross-Site Scripting via Jinja2 Template Autoescaping Bypass

Title source: llm
STIX 2.1

Description

Webrecorder pywb before 2.6.0 allows XSS because it does not ensure that Jinja2 templates are autoescaped.

References (2)

Core 2
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/webrecorder/pywb/compare/v-2.5.0...v-2.6.0

Scores

CVSS v3 6.1
EPSS 0.0070
EPSS Percentile 48.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (2)
pypi/pywb 0 - 2.6.0PyPI
webrecorder/pywb < 2.6.0
Published Aug 18, 2021
Tracked Since Feb 18, 2026