CVE-2020-13978: Improper Neutralization of Special Elements used in an OS Command

Monstra CMS 3.0.4 allows an attacker, who already has administrative access to modify .chunk.php files on the Edit Chunk screen, to execute arbitrary OS commands via the Theme Module by visiting the admin/index.php?id=themes&action=editchunk URI. NOTE: there is no indication that the Edit Chunk...