CRLF injection vulnerability in lib/exe/fetch.php in DokuWiki 2006-03-09e, and possibly earlier, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the media parameter. NOTE: this issue can be leveraged for XSS attacks.

lib/exec/fetch.php in DokuWiki before 2006-03-09e allows remote attackers to cause a denial of service (CPU consumption) via large w and h parameters, when resizing an image.

lib/exec/fetch.php in DokuWiki before 2006-03-09e, when conf[imconvert] is configured to use ImageMagick, allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) w and (2) h parameters, which are not filtered when invoking convert.