6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-45598

CVE-2022-45598: Joplin Desktop App vulnerable to Cross-site Scripting

Cross Site Scripting vulnerability in Joplin Desktop App before v2.9.17 allows attacker to execute arbitrary code via improper santization.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2022-45598

CVE-2022-45598:

6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
joplin	npm	< 2.9.17	2.9.17

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from unescaped user input in the markdown renderer's code block handling. The commit diff shows:

Added HTML entity encoding for the 'lang' parameter in MdToHtml.ts
Prior to patch, line 486 used ${lang} directly in HTML attributes
The test case demonstrates XSS via data-joplin-language attribute containing SVG payload
CWE-79 alignment: Failure to sanitize user input (code block language) before embedding in HTML output
Attack vector matches: Crafted string in code block language parameter triggers XSS when rendered

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.

Reasoning

*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.

6.1

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2022-45598: Joplin Desktop App vulnerable to Cross-site Scripting

CVE-2022-45598:

6.1

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

CVE-2022-45598: Joplin Desktop App vulnerable to Cross-site Scripting

6.1

6.1

Basic Information

Basic Information

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI