CVE-2024-49362: joplin Code Injection

Description

Joplin is a free, open source note taking and to-do application. Joplin-desktop has a vulnerability that leads to remote code execution (RCE) when a user clicks on an <a> link within untrusted notes. The issue arises due to insufficient sanitization of <a> tag attributes introduced by the Mermaid. This vulnerability allows the execution of untrusted HTML content within the Electron window, which has full access to Node.js APIs, enabling arbitrary shell command execution.

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CVSS v3.1 Score

7.7

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L

Weakness Type (CWE)

CWE-94 CWE-94

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
joplin_project	joplin	< 3.1

References

Advisories & Patches

https://github.com/laurent22/joplin/security/advisories/GHSA-hff8-hjwv-j9q7

Exploits

https://github.com/laurent22/joplin/security/advisories/GHSA-hff8-hjwv-j9q7

Frequently Asked Questions

What is CVE-2024-49362? +

Joplin is a free, open source note taking and to-do application. Joplin-desktop has a vulnerability that leads to remote code execution (RCE) when a user clicks on an <a> link within untrusted notes. The issue arises due to insufficient sanitization of <a> tag attributes introduced by the Mermaid. This vulnerability allows the execution of untrusted HTML content within the Electron window, which has full access to Node.js APIs, enabling arbitrary shell command execution. It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2024-49362? +

CVE-2024-49362 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-49362? +

CVE-2024-49362 affects products from joplin_project, specifically: joplin. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-49362? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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