Advisory Weakness Curation

Downloads Resources over HTTP in libxl Affected versions of `libxl` insecurely download an executable over an unencrypted HTTP connection. In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the system running `libxl`. ## Recommendation The module author recommends installing the bindings using a pinned and verified version of SDK instead of the automated download. More information is available in the modules README https://www.npmjs.com/package/libxl.

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') libxl provides Node bindings for the libxl library for reading and writing excel (XLS and XLSX) spreadsheets. libxl downloads zipped resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested zip file with an attacker controlled zip file if the attacker is on the network or positioned in between the user and the remote server.