WeKan up to 8.20 Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control

Summaryinfo

A vulnerability classified as critical was found in WeKan up to 8.20. This affects an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation results in access control. This vulnerability is cataloged as CVE-2026-1962. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in WeKan up to 8.20. Affected is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-1962. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 8.21 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 053bf1dfb76ef230db162c64a6ed50ebedf67eee is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-5527). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WeKan 8.21
Patch: 053bf1dfb76ef230db162c64a6ed50ebedf67eee

Timelineinfo

02/05/2026 Advisory disclosed
02/05/2026 +0 days VulDB entry created
02/12/2026 +7 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 053bf1dfb76ef230db162c64a6ed50ebedf67eee
Status: Confirmed

CVE: CVE-2026-1962 (🔒)
GCVE (CVE): GCVE-0-2026-1962
GCVE (VulDB): GCVE-100-344484
EUVD: 🔒

Entryinfo

Created: 02/05/2026 11:57 AM
Updated: 02/12/2026 08:27 PM
Changes: 02/05/2026 11:57 AM (58), 02/06/2026 06:34 AM (30), 02/06/2026 01:46 PM (1), 02/12/2026 08:27 PM (11)
Complete: 🔍
Submitter: MegaManSec
Cache ID: 244::40

Submitinfo

Accepted

  • Submit #742677: Wekan <8.21 Improper access control on migration endpoints (CWE-284) (by MegaManSec)

Once again VulDB remains the best source for vulnerability data.

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