CVE-2026-1962
Published: 05 February 2026
Summary
CVE-2026-1962 is a medium-severity Incorrect Privilege Assignment (CWE-266) vulnerability in Wekan Project Wekan. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 8.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Defining account types, requiring approvals for creation, specifying authorizations, monitoring usage, and reviewing accounts directly prevents improper access control by ensuring only authorized accounts exist and are used.
The control requires explicit definition of separated access authorizations, making incorrect privilege assignments that bundle conflicting duties harder to implement.
Ensures privileges are assigned only as necessary rather than incorrectly over-granted.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Improper access control in public-facing WeKan web app enables remote exploitation with limited C/I/A impact via attachment migration component.
NVD Description
A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading…
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to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.
Deeper analysisAI
CVE-2026-1962 is an improper access control vulnerability (CWE-266, CWE-284) in WeKan open-source kanban software versions up to 8.20. The issue resides in an unknown function within the server/attachmentMigration.js file of the Attachment Migration component. It carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L) and was published on 2026-02-05.
An attacker with low privileges can exploit this vulnerability remotely without user interaction. Successful manipulation of the affected function enables limited impacts on confidentiality, integrity, and availability, potentially allowing unauthorized access or modifications within the Attachment Migration functionality.
Advisories recommend upgrading to WeKan version 8.21, which includes the fixing commit 053bf1dfb76ef230db162c64a6ed50ebedf67eee. Relevant resources are available at the WeKan GitHub repository, the specific patch commit, the v8.21 release tag, and VulDB entries for ctiid.344484 and id.344484.
Details
- CWE(s)