Secunia Logo  
 
My Little Forum/Guestbook/Weblog "link" BBcode Script Insertion
Secunia Advisory: SA18628
Release Date: 2006-01-27
Last Update: 2006-02-03
Popularity: 11,348 views

Critical:
Moderately critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Unpatched

Software:My Little Forum 1.x
My Little Guestbook
My Little Weblog

Subscribe: Instant alerts on relevant vulnerabilities

CVE reference:CVE-2006-0471
CVE-2006-0472
CVE-2006-0473


Description:
Aliaksandr Hartsuyeu has discovered a vulnerability in My Little Forum, My Little Guestbook, and My Little Weblog, which can be exploited by malicious people to conduct script insertion attacks.

Input passed to the "link" bbcode tag when posting a message isn't properly verified, before being used. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when a malicious link with the "JavaScript" URI handler is followed from a malicious message.

Example:
[link=javascript:[code]]Text[/link]

The vulnerability has been confirmed in the following products:
* My Little Forum 1.5
* My Little Guestbook (latest version)
* My Little Weblog (latest version)

Other versions may also be affected.

Solution:
Edit the source code to ensure that input is properly verified.

Provided and/or discovered by:
Aliaksandr Hartsuyeu

Changelog:
2006-02-03: Added CVE references.

Original Advisory:
http://evuln.com/vulns/51/summary.html


Track this Secunia Advisory
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.

Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.

About this Secunia Advisory
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
  
Latest Advisories

Send Feedback to Secunia
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.

Ideas, suggestions, and other feedback are most welcome.

Most Popular - 3 Hours

1. phpBB reveals user IPs // 44 views
2. NTP OpenSSL "EVP_VerifyFinal()" Spoofing Vulnerability // 38 views
3. Drupal Project Module File Upload and Cross-Site Scripting // 37 views
4. Cisco Global Site Selector DNS Request Denial of Service // 35 views
5. Red Hat update for openssl // 34 views
6. EVA-Web Multiple Cross-Site Scripting Vulnerabilities // 33 views
7. SmbFTPD Long Command Processing Vulnerability // 33 views
8. ISC BIND "EVP_VerifyFinal()" and "DSA_do_verify()" Spoofing Vulnerability // 32 views
9. Drupal Project Issue Tracking Module Multiple Vulnerabilities // 32 views
10. Internet Explorer Data Binding Memory Corruption Vulnerability // 31 views