What is the CVSS score of CVE-2025-55011?

CVE-2025-55011 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Kanboard are affected by CVE-2025-55011?

Organizations using Kanboard should be aware of moderate risk from CVE-2025-55011, a path traversal vulnerability rated CVSS 6.4. This could allow unauthorized file access.. A patch is available.

Is there a public PoC exploit available for CVE-2025-55011?

Yes, a public proof-of-concept exploit is available for CVE-2025-55011. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-55011?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review file handling controls.

Kanboard CVE-2025-55011

MEDIUM

Path Traversal (CWE-22)

2025-08-12 security-advisories@github.com

Path Traversal Kanboard

6.4

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:06 vuln.today

Patch released

Mar 28, 2026 - 19:06 nvd

Patch available

PoC Detected

Aug 22, 2025 - 17:15 vuln.today

Public exploit code

CVE Published

Aug 12, 2025 - 16:15 nvd

MEDIUM 6.4

DescriptionGitHub Advisory

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.

AnalysisAI

Kanboard is project management software that focuses on the Kanban methodology. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. 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. Affected products include: Kanboard. Version information: version 1.2.47.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.