CVE-2026-30846
HIGH EPSS 26.3%
Published Mar 6, 20263mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
Published Mar 6, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago
Description
Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the globalwebhooks publication exposes all global webhook integrations—including sensitive url and token fields—without performing any authentication check on the server side. Although the subscription is normally invoked from the admin settings page, the server-side publication has no access control, meaning any DDP client, including unauthenticated ones, can subscribe and receive the data. This allows an unauthenticated attacker to retrieve global webhook URLs and authentication tokens, potentially enabling unauthorized use of those webhooks and access to connected external services. This issue has been fixed in version 8.34.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
26.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 2
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Information Exposure
CWE-306 Missing Authentication for Critical Function Authentication
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| wekan_project | wekan | * | ≥8.31 – <8.33 |
References 3
- github.com https://github.com/wekan/wekan/commit/1ee9b2e917104f54c035f6426169a28fedecbdb6
- github.com https://github.com/wekan/wekan/releases/tag/v8.34
- securitylab.github.com https://securitylab.github.com/advisories/GHSL-2026-037_Wekan/
Remediation
- github.com https://github.com/wekan/wekan/commit/1ee9b2e917104f54c035f6426169a28fedecbdb6