CVE-2025-27409
7.5 · HIGHOverview
CVE-2025-27409 is a high-severity vulnerability affecting joplin_project joplin. It was published on April 30, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. Prior to version 3.3.3, path traversal is possible in Joplin Server if static file path starts with `css/pluginAssets` or `js/pluginAssets`. The `findLocalFile` function in the `default route` calls `localFileFromUrl` to check for special `pluginAssets` paths. If the function returns a path, the result is returned directly, without checking for path traversal. The vulnerability allows attackers to read files outside the intended directories. This issue has been patched in version 3.3.3.
Remediation
Check the references section for vendor advisories and patches from joplin_project. Update joplin to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| joplin_project | joplin | >= 0, < 3.3.3 | Affected |
Frequently Asked Questions
What is CVE-2025-27409?
CVE-2025-27409 is a high-severity vulnerability affecting joplin_project joplin. It was published on April 30, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-27409?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-27409?
Check the references section for vendor advisories and patches from joplin_project. Update joplin to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-27409?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-27409 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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