CVE-2025-27134: Joplin is a free, open source note taking and to-do application, which can handle a large number of notes orga

Q: How do I fix CVE-2025-27134?

joplin: upgrade to 3.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-27134 being exploited?

CVE-2025-27134 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-27134 affect?

CVE-2025-27134 affects joplin. Severity is high (CVSS 8.8). Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. Prior to version 3.3.3, a privilege escalation vulnerability exists in the Joplin server, allowing non-admin

Q: How urgent is CVE-2025-27134?

Priority 56/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2025-27134 is a high-severity flaw (CVSS 8.8) affecting joplin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. Prior to version 3.3.3, a privilege escalation vulnerability exists in the Joplin server, allowing non-admin users to exploit the API endpoint `PATCH /api/users/:id` to set the `is_admin` field to 1. The vulnerability allows malicious low-privileged users to perform administrative actions without proper authorization

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-04-30
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: joplin project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-30 15:16 UTCPublished CVE record published
2026-06-17 09:03 UTCUpdated Record last modified

joplin project joplin UPGRADE

Affected: < 3.3.3

Fixed in: 3.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy joplin || rpm -q joplin || joplin --version

2. UPGRADE to 3.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade joplin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade joplin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Joplin 3.3.3 Server - Privilege Escalation

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-27134?

joplin: upgrade to 3.3.3. Exact commands for each OS are on this page.

Is CVE-2025-27134 being exploited?

CVE-2025-27134 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-27134 affect?

CVE-2025-27134 affects joplin. Severity is high (CVSS 8.8). Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. Prior to version 3.3.3, a privilege escalation vulnerability exists in the Joplin server, allowing non-admin

How urgent is CVE-2025-27134?

Priority 56/100. High severity; Public exploit reference

Related CVEs

CVE-2026-22810 HIGH 8.2 UPGRADE UPGRADE Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks
CVE-2025-27409 HIGH 7.5 UPGRADE Joplin is a free, open source note taking and to-do application, which can handle a large number of notes orga
CVE-2025-25187 HIGH 7.8 UPGRADE Joplin is a free, open source note taking and to-do application, which can handle a large number of notes orga
CVE-2025-24028 HIGH 7.8 UPGRADE Joplin is a free, open source note taking and to-do application, which can handle a large number of notes orga
CVE-2024-55630 LOW 3.3 UPGRADE Joplin is a free, open source note taking and to-do application, which can handle a large number of notes orga

References

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