6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-36573

CVE-2022-36573: 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.

(GitHub Advisory)

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CVE-2022-36573

CVE-2022-36573:

6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
pagekit/pagekit	composer	<= 1.0.18

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper input sanitization in the Markdown processing pipeline. The PostController's save action handles user input from the blog editor, and the Markdown parser (likely using a library like Parsedown) converts this input to HTML. The provided XSS payload (<svg/onrandom=random onload=confirm(1)>) indicates the system allows SVG elements with event handlers to persist through parsing/sanitization. These functions are core to content processing and would logically be responsible for the inadequate neutralization described in CWE-79. The high confidence comes from the vulnerability's nature (XSS in Markdown rendering) and Pagekit's architecture patterns.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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