Joplin is a free, open source note taking and to-do application. A Cross-site Scripting (XSS) vulnerability allows an untrusted note opened in safe mode to execute arbitrary code. `packages/renderer/MarkupToHtml.ts` renders note content in safe mode by surrounding it with <pre> and </pre>, without escaping any interior HTML tags. Thus, an attacker can create a note that closes the opening <pre> tag, then includes HTML that runs JavaScript. Because the rendered markdown iframe has the same origin as the toplevel document and is not sandboxed, any scripts running in the preview iframe can access the top variable and, thus, access the toplevel NodeJS `require` function. `require` can then be used to import modules like fs or child_process and run arbitrary commands. This issue has been addressed in version 2.12.9 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-41769 Joplin is a free, open source note taking and to-do application. A Cross-site Scripting (XSS) vulnerability allows an untrusted note opened in safe mode to execute arbitrary code. `packages/renderer/MarkupToHtml.ts` renders note content in safe mode by surrounding it with <pre> and </pre>, without escaping any interior HTML tags. Thus, an attacker can create a note that closes the opening <pre> tag, then includes HTML that runs JavaScript. Because the rendered markdown iframe has the same origin as the toplevel document and is not sandboxed, any scripts running in the preview iframe can access the top variable and, thus, access the toplevel NodeJS `require` function. `require` can then be used to import modules like fs or child_process and run arbitrary commands. This issue has been addressed in version 2.12.9 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 11 Apr 2025 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Joplin Project
Joplin Project joplin
CPEs cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:-:*:*
Vendors & Products Joplin Project
Joplin Project joplin

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-02T17:23:27.755Z

Reserved: 2023-07-10T17:51:29.610Z

Link: CVE-2023-37898

cve-icon Vulnrichment

Updated: 2024-08-02T17:23:27.755Z

cve-icon NVD

Status : Analyzed

Published: 2024-06-21T20:15:11.583

Modified: 2025-04-11T17:19:44.633

Link: CVE-2023-37898

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.