Vulnerability · Published Mar 6, 2026 · Assigned by GitHub_M

CVE-2026-30845Wekan Exposes Sensitive Data through Lack of Field Filtering During Board Publication

Medium 6.9

In plain English

A medium-severity information exposure in Wekan from Wekan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.3%top 72.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the board composite publication in Wekan publishes all integration data for a board without any field filtering, exposing sensitive fields including webhook URLs and authentication tokens to any subscriber. Since board publications are accessible to all board members regardless of their role (including read-only and comment-only users), and even to unauthenticated DDP clients for public boards, any user who can access a board can retrieve its webhook credentials. This token leak allows attackers to make unauthenticated requests to the exposed webhooks, potentially triggering unauthorized actions in connected external services. This issue has been fixed in version 8.34.

Affected products (as reported)

Vendor	Product	Versions
Wekan	Wekan	>= 8.31.0, < 8.34

Weakness: CWE-200, CWE-862 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:L/SA:N

References

https://securitylab.github.com/advisories/GHSL-2026-036_Wekan/ x_refsource_CONFIRM
https://github.com/wekan/wekan/commit/8c00adc6b865653bd717a946dd646eb54ac78c9c x_refsource_MISC
https://github.com/wekan/wekan/releases/tag/v8.34 x_refsource_MISC