SB2025021015 - Cross-site scripting in Joplin

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2025-25187)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in Goto Anything. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Install update from vendor's website.

References

• https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy/script-src
• https://github.com/laurent22/joplin/blob/2fc9bd476b0d9abcddb0a46f615a48333779d225/packages/app-desktop/plugins/GotoAnything.tsx#L558
• https://github.com/laurent22/joplin/commit/360ece6f8873ef81afbfb98b25faad696ffccdb6
• https://github.com/laurent22/joplin/security/advisories/GHSA-9gfv-q6wj-fr3c