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CVE-2025-25187

7.8 · HIGH

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks.

Published Feb 7, 2025CWE-79EPSS 0.48%

Overview

CVE-2025-25187 is a high-severity vulnerability. It was published on February 7, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. 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. This vulnerability is caused by adding note titles to the document using React's `dangerouslySetInnerHTML`, without first escaping HTML entities. Joplin lacks a Content-Security-Policy with a restrictive `script-src`. This allows arbitrary JavaScript execution via inline `onclick`/`onload` event handlers in unsanitized HTML. Additionally, Joplin's main window is created with `nodeIntegration` set to `true`, allowing arbitrary JavaScript execution to result in arbitrary code execution. Anyone who 1) receives notes from unknown sources and 2) uses <kbd>ctrl</kbd>-<kbd>p</kbd> to search is impacted. This issue has been addressed in version 3.1.24 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refdeveloper.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-srcGitHubgithub.com/laurent22/joplin/blob/2fc9bd476b0d9abcddb0a46f615a48333779d225/packages/app-desktop/plugins/GotoAnything.tsx#L558GitHubgithub.com/laurent22/joplin/commit/360ece6f8873ef81afbfb98b25faad696ffccdb6GitHubgithub.com/laurent22/joplin/security/advisories/GHSA-9gfv-q6wj-fr3cGitHubgithub.com/laurent22/joplin/security/advisories/GHSA-9gfv-q6wj-fr3c

How CyberStrike helps

Frequently asked questions

What is CVE-2025-25187?

CVE-2025-25187 is a high-severity vulnerability. It was published on February 7, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-25187?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-25187?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2025-25187?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-25187 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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