CVE-2026-46650 (GCVE-0-2026-46650)

Vulnerability from cvelistv5 – Published: 2026-09-21 21:16 – Updated: 2026-09-21 21:16
VLAI
Title
Joplin: Stored XSS in public share viewer via javascript: URL bypass in isAcceptedUrl
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, 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.
Severity
4.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
laurent22 joplin Affected: < 3.7.2
guessed Create a notification for this product.
Show details on NVD website
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        "discovery": "UNKNOWN"
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      "title": "Joplin: Stored XSS in public share viewer via javascript: URL bypass in isAcceptedUrl"
    }
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    "dateReserved": "2026-05-15T20:11:54.585Z",
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}



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