CVE-2018-5773

Published: Jan 18, 2018Modified: Jun 17, 2026

6.1

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final '>' character from an IMG tag.

Affected (1)

Products: Python Markdown2 Project: Python Markdown2

Python Markdown2 Project

1 product

Python Markdown2

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Python Markdown2 Project Python Markdown2	Up to 2.3.5

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://github.com/trentm/python-markdown2/issues/285

Source: cve@mitre.org

Third Party Advisory

https://github.com/trentm/python-markdown2/issues/285

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.