Advisory Weakness Curation

Unintended read access in kramdown gem The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.

Injection Vulnerability The kramdown gem processes the template option inside Kramdown documents by default, which allows unintended read access (such as `template="`/etc/passwd`"`) or unintended embedded Ruby code execution.