Re: Serendipity 'serendipity[filter][bp.ALT]' Cross-Site Scripting vulnerability

[Henri Salo <henri@xxxxxxx>]

On Wed, Nov 02, 2011 at 08:40:35PM +0000, sschurtz@xxxxxxxxxxx wrote:
> Advisory:                     Serendipity 'serendipity[filter][bp.ALT]' 
> Cross-Site Scripting vulnerability
> Advisory ID:  SSCHADV2011-015
> Author:                       Stefan Schurtz
> Affected Software:    Successfully tested on Serendipity 1.5.5
> Vendor URL:   http://www.s9y.org
> Vendor Status:        fixed
> CVE-ID:               -
> 
> ==========================
> Vulnerability Description:
> ==========================
> 
> The parameter "serendipity[filter][bp.ALT]" in Serendipity backend is prone 
> to a Cross-Site Scripting vulnerability
> 
> ==================
> Technical Details:
> ==================
> 
> http://<target>/serendipity/serendipity_admin_image_selector.php?serendipity[filter][bp.ALT]=</script><script>alert(document.cookie)</script>&go=+-+Go!+-+
> 
> =========
> Solution:
> =========
> 
> Upgrade to Serendipity 1.6
> 
> ====================
> Disclosure Timeline:
> ====================
> 
> 22-Sep-2011 - informed developers
> 27-Oct-2011 - fixed by vendor
> 02-Nov-2011 - release date of this security advisory
> 
> ========
> Credits:
> ========
> 
> Vulnerability found and advisory written by Stefan Schurtz.
> 
> ===========
> References:
> ===========
> 
> http://www.s9y.org
> http://blog.s9y.org/archives/233-Serendipity-1.6-released.html
> http://www.rul3z.de/advisories/SSCHADV2011-015.txt

CVE-2011-4365

- Henri Salo