ACS Blog contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate 'search' variables upon submission to the 'search.asp' script. This could allow a user to create a specially crafted URL that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.
Discovery of this vulnerability is credited to farhad koosha <firstname.lastname@example.org>.
ASP Press ACS Blog 1.1 b
ASP Press ACS Blog 1.0
ASP Press ACS Blog 0.9
ASP Press ACS Blog 0.8
ACS Blog is reportedly affected by a cross-site scripting vulnerability. This issue is due to a failure in the application to properly sanitize user-supplied input.
An attacker may leverage this issue to have arbitrary script code executed in the browser of an unsuspecting user. This may facilitate the theft of cookie-based authentication credentials as well as other attacks.
No exploit is required.
The following proof of concept is available: http://www.example.com//search.asp?search=%22%3Cbr%3E%3Ciframe+src%3D%22http%3A%2F%2Fgoogle.com%22%3E%3C%2Fiframe%3E
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: email@example.com <mailto:firstname.lastname@example.org>.