A remote code execution (RCE) vulnerability in the component /PluXml/core/admin/parametres_edittpl.php of PluXml v5.8.16 and lower allows attackers to execute arbitrary code via injecting a crafted payload into a template.
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.