Variable overwrite vulnerability in blog.php in PHP-Update 2.7 and earlier allows remote attackers to overwrite arbitrary program variables and execute arbitrary PHP code via multiple vectors that use the extract function, as demonstrated by the (1) f, (2) newmessage, (3) newusername, (4) adminuser, and (5) permission parameters.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This vulnerability has a 6.65% probability of being exploited in the next 30 days, ranking higher than 94% of all scored CVEs.