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CVE-2026-25531

Kanboard TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects

4.3 Medium

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
None

Exploit likelihood

0.26%Up 0.2 points since Feb 14, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.3

Kanboard TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Record
CVE-2026-25531
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-6167 4.3

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Record
EUVD-2026-6167
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02
NVD 4.3

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Record
CVE-2026-25531
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-862
Updated
2026-11-02
OSV 4.3

Kanboard TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Record
CVE-2026-25531
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-862
Updated
2026-11-02
OSVDEBIAN-CVE-2026-25531 4.3

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Record
DEBIAN-CVE-2026-25531
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2026-25531 4.3

Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.

Record
UBUNTU-CVE-2026-25531
CVSS 3.1
4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kanboard-cli
Ubuntu:18.04:LTS
 All versions, plus listed versions
0.0.2-1
 None known
python-kanboard
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.0.1-1
 None known
kanboard-cli
Ubuntu:20.04:LTS
 All versions, plus listed versions
0.0.2-1
 None known
python-kanboard
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.0.1-1
 None known
kanboard-cli
Ubuntu:22.04:LTS
 All versions, plus listed versions
0.0.2-1.1
 None known
python-kanboard
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.0.1-1.1
 None known
kanboard-cli
Ubuntu:24.04:LTS
 All versions, plus listed versions
0.0.2-3
 None known
python-kanboard
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.0.1-21.1.5-1
 None known
python-kanboard
Ubuntu:25.10
 All versions, plus listed versions
1.1.5-1
 None known
python-kanboard
Ubuntu:26.10
 All versions, plus listed versions
1.1.5-1build1
 None known
python-kanboard
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.1.5-11.1.5-1build1
 None known

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-25531 is a medium vulnerability (CVSS 4.3) in Kanboard, published February 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.

References

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