[pyrocms/pyrocms] PyroCMS vulnerable to stored Cross Site Scripting

PyroCMS 3.9 is vulnerable to a stored Cross Site Scripting (XSS) when a low privileged user, such as an author, injects a crafted html and javascript payload in a blog post, leading to full admin account takeover or privilege escalation.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-37721
• https://labs.integrity.pt/advisories/cve-2022-37721/
• http://pyrocms.com
• https://github.com/advisories/GHSA-cm7f-hf2g-ghrp