Vulnerability Details : CVE-2025-27409
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, path traversal is possible in Joplin Server if static file path starts with `css/pluginAssets` or `js/pluginAssets`. The `findLocalFile` function in the `default route` calls `localFileFromUrl` to check for special `pluginAssets` paths. If the function returns a path, the result is returned directly, without checking for path traversal. The vulnerability allows attackers to read files outside the intended directories. This issue has been patched in version 3.3.3.
Vulnerability category: Directory traversal
Products affected by CVE-2025-27409
- cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:-:*:*
Exploit prediction scoring system (EPSS) score for CVE-2025-27409
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2025-27409
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
N/A
|
N/A
|
GitHub, Inc. | 2025-04-30 |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST | 2025-05-16 |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
GitHub, Inc. | 2025-04-30 |
CWE ids for CVE-2025-27409
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- a0819718-46f1-4df5-94e2-005712e83aaa (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2025-27409
-
https://github.com/laurent22/joplin/security/advisories/GHSA-5xv6-7jm3-fmg5
Exploit;Vendor Advisory
-
https://github.com/laurent22/joplin/pull/11916
Patch
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