ACS Blog contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate the [link], [mail], and [img] BBcode tags upon submission to the comments section of ACS Blog. 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.
The pages affected by the flaw are: add_comment.asp, admin_entry.asp, inc_editor_buttons_safari.asp, inc_functions.asp, inc_javascripts.js, popup_insert_element.asp, popup_preview.asp, user_footer.asp, user_functions.asp.
Classification
Location:
Remote/Network Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Confidentiality,
Loss of Integrity
Exploit:
Exploit Available
Disclosure:
OSVDB Verified
OSVDB:
Web Related
Solution
Upgrade to version 1.1.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.