CVE-2026-25531Public exploitNetwork attack vector

Authenticated task injection via unchecked target projects

Published Feb 13, 2026 · Updated Feb 13, 2026

Missing authorization in Kanboard before 1.2.50 allows remote authenticated users to inject duplicated tasks into inaccessible projects. TaskCreationController::duplicateProjects() validates access only to the source project, then passes each untrusted target project ID to duplicateToProject() without a permission check. Any authenticated user with access to one source project can create task records in other projects, but cannot read those projects through this flaw.

CVSS severity4.3
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Kanboard before 1.2.50 allows remote authenticated users to inject duplicated tasks into inaccessible projects. TaskCreationController::duplicateProjects() validates access only to the source project, then passes each untrusted target project ID to duplicateToProject() without a permission check. Any authenticated user with access to one source project can create task records in other projects, but cannot read those projects through this flaw.

The record

CVE
CVE-2026-25531
Published
Feb 13, 2026
Updated
Feb 13, 2026
Vendor
Kanboard
Product
Kanboard
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.2.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kanboard · Kanboardversion=< 1.2.50

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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