Gentoo Linux Security Advisory GLSA 200510-16 – Maksymilian Arciemowicz reported that in libraries/grab_globals.lib.php, the $__redirect parameter was not correctly validated. Systems running PHP in safe mode are not affected. Versions less than 2.6.4_p2 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40770/glsa-200510-16.txt
Source: https://packetstormsecurity.com/files/40770/Gentoo-Linux-Security-Advisory-200510-16.html