Arbitrary PHP Code Injection via User-Agent Header in WikkaWiki 1.3.1 and 1.3.2

CVE-2011-4451 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

libs/Wakka.class.php in WikkaWiki 1.3.1 and 1.3.2, when the spam_logging option is enabled, allows remote attackers to write arbitrary PHP code to the spamlog_path file via the User-Agent HTTP header in an addcomment request. NOTE: the vendor disputes this issue because the rendering of the spamlog_path file never uses the PHP interpreter

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