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CVE-2026-1898— WeKan LDAP User Sync syncUser.js SyncLDAPBleed access control

Quick assessment

Affected
n/a WeKan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WeKan是WeKan开源的一个看板应用程序。 WeKan 8.20及之前版本存在访问控制错误漏洞，该漏洞源于对文件packages/wekan-ldap/server/syncUser.js中未知部分的操作导致访问控制不当。

CVSS 6.3 · Medium EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-1898

Vulnerability Information
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Vulnerability Title
WeKan LDAP User Sync syncUser.js SyncLDAPBleed access control
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in WeKan up to 8.20. This affects an unknown part of the file packages/wekan-ldap/server/syncUser.js of the component LDAP User Sync. This manipulation causes improper access controls. It is possible to initiate the attack remotely. Upgrading to version 8.21 is able to mitigate this issue. Patch name: 146905a459106b5d00b4f09453a6554255e6965a. You should upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WeKan 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeKan是WeKan开源的一个看板应用程序。 WeKan 8.20及之前版本存在访问控制错误漏洞，该漏洞源于对文件packages/wekan-ldap/server/syncUser.js中未知部分的操作导致访问控制不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- WeKan 8.0 -

II. Public POCs for CVE-2026-1898

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III. Intelligence Information for CVE-2026-1898

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Same Patch Batch · n/a · 2026-02-05 · 15 CVEs total

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IV. Related Vulnerabilities

Same product: WeKan
Same vendor: n/a
Same weakness: CWE-284

V. Comments for CVE-2026-1898

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