#VU103726 Cross-site scripting in Joplin - CVE-2025-25187
Vulnerability identifier: #VU103726
Vulnerability risk: Low
CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]
CVE-ID:
CWE-ID:
CWE-79
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Joplin
Client/Desktop applications /
Software for archiving
Vendor: Joplinapp
Description
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Joplin: 3.1.1 - 3.1.23
External links
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
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
