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Textpattern CMS 4.9.0-dev Cross Site Scripting

CVE Category Price Severity
CVE-2021-36062 CWE-79 N/A High
Author Risk Exploitation Type Date
Unknown High Remote 2021-03-06
CVSS EPSS EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021030031

Below is a copy:

Textpattern CMS 4.9.0-dev Cross Site Scripting
# Exploit Title:  Textpattern CMS 4.9.0-dev - 'Excerpt' Persistent Cross-Site Scripting (XSS)
# Date: 2021-03-04
# Exploit Author: Tushar Vaidya
# Vendor Homepage: https://textpattern.com
# Software Link: https://textpattern.com/start
# Version: v 4.9.0-dev
# Tested on: Windows

Steps-To-Reproduce:
1. Login into Textpattern CMS admin panel.
2. Now go to the *Content > Write > ** Excerpt*.
3. Now paste the below payload in the URL field.

Ba1man><img src=x onerror=confirm(document.cookie)>

4. Now click on the *Save* button.
5. Now go to the *articles* page
5. The XSS will be triggered.

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