CVE - CVE-2023-39517

CVE-ID
CVE-2023-39517	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Joplin is a free, open source note taking and to-do application. A Cross site scripting (XSS) vulnerability in affected versions allows clicking on an untrusted image link to execute arbitrary shell commands. The HTML sanitizer (`packages/renderer/htmlUtils.ts::sanitizeHtml`) preserves `<map>` `<area>` links. However, unlike `<a>` links, the `target` and `href` attributes are not removed. Additionally, because the note preview pane isn't sandboxed to prevent top navigation, links with `target` set to `_top` can replace the toplevel electron page. Because any toplevel electron page, with Joplin's setup, has access to `require` and can require node libraries, a malicious replacement toplevel page can import `child_process` and execute arbitrary shell commands. This issue has been fixed in commit 7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f which is included in release version 2.12.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox URL:https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox MISC:https://github.com/laurent22/joplin/commit/7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f URL:https://github.com/laurent22/joplin/commit/7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f MISC:https://github.com/laurent22/joplin/security/advisories/GHSA-2h88-m32f-qh5m URL:https://github.com/laurent22/joplin/security/advisories/GHSA-2h88-m32f-qh5m
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20230803	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230803)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)