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CVE-2025-55011

Kanboard Path Traversal in File Write via Task File Upload Api

Published: Aug 12, 2025Updated: Aug 22, 2025 Sources: CVE List NVDCWE-22
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.3%
Top 75.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Kanboard is project management software that focuses on the Kanban methodology. Prior to version 1.2.47, the createTaskFile method in the API does not validate whether the task_id parameter is a valid task id, nor does it check for path traversal. As a result, a malicious actor could write a file anywhere on the system the app user controls. The impact is limited due to the filename being hashed and having no extension. This issue has been patched in version 1.2.47.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-22

Affected Products

kanboardkanboard
On-prem
Enterprise Software / collaboration-groupware
kanboardoss-projectEnterprise Softwareaka kanban board

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/kanboard/kanboard/security/advisories/GHSA-26f4-rx96-xc55
github.com
https://github.com/kanboard/kanboard/commit/523a6135e944b6884c091a3fd7605af8ef133681
github.com
https://github.com/kanboard/kanboard/blob/b2e35ac520add67cff792aab960b3c002c48e3d0/app/Api/Procedure/TaskFileProcedure.php#L47-L57
github.com

Timeline

Published
Aug 12, 2025
Last Updated
Aug 22, 2025

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