Total Tests:

Reflected Cross-Site Scripting (XSS) in Textpattern

Advisory ID:HTB23223
Product:Textpattern
Vendor:http://textpattern.com/
Vulnerable Versions:4.5.5 and probably prior
Tested Version:4.5.5
Advisory Publication:July 9, 2014 [without technical details]
Vendor Notification:July 9, 2014
Vendor Fix:September 20, 2014
Public Disclosure:October 1, 2014
Latest Update:September 21, 2014
Vulnerability Type:Cross-Site Scripting [CWE-79]
CVE Reference:CVE-2014-4737
Risk Level:Medium
CVSSv2 Base Score:4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge Security Research Lab discovered XSS vulnerability in Textpattern, which can be exploited to perform Cross-Site Scripting attacks against users of vulnerable application.

1) Reflected Cross-Site Scripting (XSS) in Textpattern: CVE-2014-4737

The vulnerability exists due to insufficient sanitization of input data passed via URI after "/textpattern/setup/index.php" script that is not deleted by default.

A remote attacker can trick a logged-in user to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. Further exploitation of the vulnerability may allow an attacker to perform phishing attacks and potentially gain unauthorized access to the website.

The following exploitation example uses the JavaScript "alert()" function to display "immuniweb" word:

http://[host]/textpattern/setup/index.php/%22%3E%3Cscript%3Ealert%28immuniwe b%29;%3C/script%3E/index.php

How to Detect Cross-Site Scripting Vulnerabilities
Website Security Test
  • GDPR & PCI DSS Test
  • Website CMS Security Test
  • CSP & HTTP Headers Check
  • WordPress & Drupal Scanning
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Solution:
Update to Textpattern 4.5.7

More Information:
http://textpattern.com/weblog/379/textpattern-cms-457-released-ten-years-on


References:
[1] High-Tech Bridge Advisory HTB23223 - https://www.immuniweb.com/advisory/HTB23223 - Cross-Site Scripting (XSS) in Textpattern.
[2] Textpattern - http://textpattern.com/ - A flexible, elegant and easy-to-use CMS.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
[5] ImmuniWeb® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing.
[6] ImmuniWeb® SSLScan - Test your servers for security and compliance with PCI DSS, HIPAA and NIST.

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