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TI-2024-27054 Aliases CVE-2024-40643

Joplin has a parsing error leading to Cross-site Scripting (XSS)

Priority HIGH 75CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Joplin is a free, open source note taking and to-do application. Joplin fails to take into account that "<" followed by a non letter character will not be considered html. As such it is possible to do an XSS by putting an "illegal" tag within a tag.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00793 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed joplin (laurent22): 3.0.15

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
laurent22joplinbefore 3.0.153.0.15Patch availableCNA
  • joplin Vendorlaurent22 Affected before 3.0.15 Fixed in 3.0.15 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:-:*:*before 3.0.15Vulnerablelaurent22
  • cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:-:*:* Versions before 3.0.15 Vulnerable ·laurent22

Remediation

  • Fix · CNA joplin (laurent22) Fixed in 3.0.15

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-40643

References

Exploit 1

Patch 1

  • TI-2023-24472 Arbitrary code execution on click of PDF links in Joplin CVSS 3.1CRITICAL 9.0
  • TI-2024-32950 Remote Code Execution on click of <a> Link in markdown preview CVSS 3.1CRITICAL 9.6
  • TI-2025-17795 Cross-site Scripting (XSS) in Rich Text Editor allows arbitrary code execution in Joplin CVSS 3.1CRITICAL 9.6
  • TI-2025-19991 Privilege escalation in Joplin server via user patch endpoint CVSS 3.1HIGH 8.8
  • TI-2024-35730 Lack of validation on openExternal allows 1 click remote code execution in joplin CVSS 3.1HIGH 8.8
  • TI-2025-20244 Joplin Server Vulnerable to Path Traversal CVSS 3.1HIGH 7.5
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences