Gentoo Linux Security Advisory GLSA 200710-21 – ShAnKaR reported that input passed to the f array parameter in tiki-graph_formula.php is not properly verified before being used to execute PHP functions. Versions less than 1.9.8.1 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60310/glsa-200710-21.txt
Source: https://packetstormsecurity.com/files/60310/Gentoo-Linux-Security-Advisory-200710-21.html