WeKan up to 8.20 LDAP User Sync syncUser.js SyncLDAPBleed access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1$0-$5k1.03

Summaryinfo

A vulnerability labeled as critical has been found in WeKan up to 8.20. This vulnerability affects unknown code of the file packages/wekan-ldap/server/syncUser.js of the component LDAP User Sync. Such manipulation leads to access control. This vulnerability is referenced as CVE-2026-1898. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability, which was classified as critical, has been found in WeKan up to 8.20. Affected by this issue is an unknown part of the file packages/wekan-ldap/server/syncUser.js of the component LDAP User Sync. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-1898. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 8.21 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 146905a459106b5d00b4f09453a6554255e6965a 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

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: 6.3
VulDB Meta Temp Score: 6.1

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

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WeKan 8.21
Patch: 146905a459106b5d00b4f09453a6554255e6965a

Timelineinfo

02/04/2026 Advisory disclosed
02/04/2026 +0 days VulDB entry created
02/05/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 146905a459106b5d00b4f09453a6554255e6965a
Status: Confirmed

CVE: CVE-2026-1898 (🔒)
GCVE (CVE): GCVE-0-2026-1898
GCVE (VulDB): GCVE-100-344270

Entryinfo

Created: 02/04/2026 03:51 PM
Updated: 02/05/2026 03:05 PM
Changes: 02/04/2026 03:51 PM (58), 02/05/2026 03:05 PM (30)
Complete: 🔍
Submitter: MegaManSec
Cache ID: 18:37A:40

Submitinfo

Accepted

  • Submit #742676: Wekan <8.21 Missing authorization on admin function (CWE-284) (by MegaManSec)

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!