Joplin
CVE-2024-40643
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.6 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Joplin is a free, open source note taking and to-do application. Rated critical severity (CVSS 9.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Joplin Project Joplin.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into
Joplin is a free, open source note taking and to-do application. Rated critical severity (CVSS 9.6), this vulnerability
Joplin v2.8.8 allows attackers to execute arbitrary commands via a crafted payload injected into the Node titles. Rated
Joplin Server instances prior to 3.7.2 expose an SSO login-code redemption endpoint (GET /api/login_with_code/:id) that
Joplin is an open source, privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and
Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into
Joplin 1.2.6 for Desktop allows XSS via a LINK element in a note. Rated medium severity (CVSS 6.1), this vulnerability i
An XSS issue in Joplin desktop 1.0.190 to 1.0.245 allows arbitrary code execution via a malicious HTML embed tag. Rated
Joplin version prior to 1.0.90 contains a XSS evolving into code execution due to enabled nodeIntegration for that parti
Joplin through 1.0.184 allows Arbitrary File Read via XSS. Rated medium severity (CVSS 5.4), this vulnerability is remot
The package joplin before 2.3.2 are vulnerable to Cross-site Request Forgery (CSRF) due to missing CSRF checks in variou
Exploit-DB