WeKan up to 8.20 Activity Publication activities.js LinkedBoardActivitiesBleed information disclosure

Summaryinfo

A vulnerability has been found in WeKan up to 8.20 and classified as problematic. Impacted is an unknown function of the file server/publications/activities.js of the component Activity Publication Handler. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2026-2207. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in WeKan up to 8.20 and classified as problematic. This issue affects an unknown part of the file server/publications/activities.js of the component Activity Publication Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-2207. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 8.21 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 91a936e07d2976d4246dfe834281c3aaa87f9503 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-2026-5822). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

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

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / 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
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WeKan 8.21
Patch: 91a936e07d2976d4246dfe834281c3aaa87f9503

Timelineinfo

02/08/2026 Advisory disclosed
02/08/2026 +0 days VulDB entry created
02/09/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 91a936e07d2976d4246dfe834281c3aaa87f9503
Status: Confirmed

CVE: CVE-2026-2207 (🔒)
GCVE (CVE): GCVE-0-2026-2207
GCVE (VulDB): GCVE-100-344921
EUVD: 🔒

Entryinfo

Created: 02/08/2026 02:11
Updated: 02/09/2026 12:27
Changes: 02/08/2026 02:11 (58), 02/08/2026 05:15 (30), 02/09/2026 12:27 (1)
Complete: 🔍
Submitter: MegaManSec
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #752163: Wekan <8.21 Information disclosure via insufficient authorization filtering (by MegaManSec)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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