Sighting correlations

What the source of this sighting of CVE-2023-42821 filed sightings of.

Source: https://github.com/gomarkdown/markdown/security/advisories/GHSA-m9xq-6h2j-65r2

Drag nodes to arrange them. Double-click a vulnerability to open it. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows vulnerabilities by sighting type.