CVE-2023-45673
CWE-94Published: June 21, 2024· Updated: Jun 17, 2026
Official Description
Joplin is a free, open source note taking and to-do application. A remote code execution (RCE) vulnerability in affected versions allows clicking on a link in a PDF in an untrusted note to execute arbitrary shell commands. Clicking links in PDFs allows for arbitrary code execution because Joplin desktop: 1. has not disabled top redirection for note viewer iframes, and 2. and has node integration enabled. This is a remote code execution vulnerability that impacts anyone who attaches untrusted PDFs to notes and has the icon enabled. This issue has been addressed in version 2.13.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Risk Analysis
Joplin is vulnerable to remote code execution when a user clicks a malicious link within a PDF attached to a note. This critical issue arises from improper iframe handling and enabled node integration, allowing attackers to execute arbitrary shell commands.
There is no public exploit known for this vulnerability, and it is not in CISA KEV. It requires user interaction to trigger.
Upgrade Joplin to version 2.13.3 or later to address the vulnerability.
Technical Analysis
CVE-2023-45673 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.0.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-94)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-45673 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts