[pagekit/pagekit] Pagekit CMS cross-site scripting in Markdown text box where articles are edited

A cross-site scripting (XSS) vulnerability in Pagekit CMS v1.0.18 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Markdown text box under /blog/post/edit.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-36573
• https://github.com/pagekit/pagekit/issues/968
• https://github.com/advisories/GHSA-q6h8-qjjc-j8cg