---
id: CVE-2026-46650
title: >-
  Joplin is an open source note-taking and to-do application that organises
  notes and lists into notebooks
summary: >-
  Joplin is an open source note-taking and to-do application that organises
  notes and lists into notebooks. Prior to 3.7.2, isAcceptedUrl() in
  packages/renderer/htmlUtils.ts uses an unanchored regular expression for
  internal resource URLs,…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: laurent22
product: joplin
affected:
  - joplin < 3.7.2
published: '2026-09-21'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:30:42.573'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46650'
references:
  - url: >-
      https://github.com/laurent22/joplin/commit/9fdc2d4adbd7b7326a2d0dcc32e12b705bfc285e
    label: security-advisories@github.com
  - url: 'https://github.com/laurent22/joplin/pull/15435'
    label: security-advisories@github.com
  - url: >-
      https://github.com/laurent22/joplin/security/advisories/GHSA-x9vj-jrqf-9wcm
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
epss: 0.00295
epssPercentile: 0.19634
ingestedAt: '2026-09-21T21:53:57.431Z'
---

## Overview

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, isAcceptedUrl() in packages/renderer/htmlUtils.ts uses an unanchored regular expression for internal resource URLs, allowing a javascript: URL containing a matching 32-character path fragment to pass validation and be emitted into an HTML note's link. A low-privileged Joplin Server user can publish the crafted HTML note as a public share. In the current build, ordinary left-click is blocked; demonstrated execution requires middle-click or Open in new tab in an older or non-hardened browser because current Chrome and Firefox block javascript: new-tab navigation. When execution succeeds, the script runs in the Joplin Server origin, can read page-visible content, and can make authenticated same-origin requests when the victim is signed in. This issue is fixed in version 3.7.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.