CVE-2018-1000534: Joplin cross-site scripting in note content

CVE-2018-1000534 · Severity: low · CVSS 3 · Published 2022-05-14

Joplin is a popular open-source note-taking application that syncs across devices and cloud services. Versions before 1.0.90 contain a cross-site scripting vulnerability in note content that can lead to arbitrary code execution when notes with malicious content are synchronized from cloud services. An attacker can exploit this by crafting notes with XSS payloads that execute with the application's privileges when a user syncs or opens the malicious content.

Technologies: Joplin. Vendors: Joplin.

Quick answers

Is CVE-2018-1000534 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2018-1000534 being exploited in the wild.
How severe is CVE-2018-1000534?
Low severity, with a CVSS score of 3, published 14 May 2022.
Which products and versions are affected?
Joplin before 1.0.90.
Is there a fix for CVE-2018-1000534?
A patch was published on 2018: Fixed in version 1.0.90 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2018-1000534 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2018-1000534?
Check whether you run Joplin at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is a cross-site scripting (XSS) issue (CWE-79) affecting Joplin's note content rendering. The root cause is that the BrowserWindow instance had nodeIntegration enabled, allowing XSS payloads in note content to evolve into arbitrary code execution. The attack vector requires user interaction—specifically, the victim must synchronize notes from cloud services or other note-keeping services containing malicious code. An attacker can achieve remote code execution with the privileges of the running application. The vulnerability was fixed in version 1.0.90 as evidenced by commit 494e235e18659574f836f84fcf9f4d4fcdcfcf89.

Affected products

  • Joplin Joplin before 1.0.90

Identifiers

  • CVE-2018-1000534
  • GHSA-m6mf-hmrh-ph4j

Timeline

  • 2018-06-26: disclosed
  • 2018: patched: Fixed in version 1.0.90
  • 2022-05-14: advisory

References

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