IIS 5 & IIS 6
images won't display if a "+" is in the username.
Last post Dec 19, 2017 06:22 AM by Yuk Ding
Dec 18, 2017 08:55 PM|pgilpat|LINK
A sample file:
/images/18/1954lmMT+JF.JPG - will not display
Dec 19, 2017 06:22 AM|Yuk Ding|LINK
In IIS7, the “+” could be blocked due to the double escaping is not allowed in request filter. However, the request filter is introduced since IIS7 and IIS6 is really far from the latest version. We can't find any document about this issue. So you need to
check whether IIS6 has the configuration like allow double escaping. In addition, considering IIS is using Urlscan, you may need to go to
UrlScan.ini and %WinDir%\System32\Inetsrv\UrlScan to check whether the configuration is blocking the IIS.