CVE-2026-53446: Wekan: Server-Side Request Forgery (SSRF) via webhook integration URLs

Severity: medium (CVSS 6.2 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-15 · updated 2026-07-16
Weakness: CWE-918

Description

Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan webhook integration URLs in models/integrations.js are stored from user input and later fetched by server/notifications/outgoing.js without applying the existing validateAttachmentUrl() private-network checks from models/lib/attachmentUrlValidation.js. A board administrator can configure webhook URLs that cause server-side requests to internal or metadata services. This issue is fixed in version 9.32.

Affected products

WeKan: before 9.32

References

https://github.com/wekan/wekan/commit/0e5fef6f31164fd3de4db353d04173ee0490cd65
https://github.com/wekan/wekan/releases/tag/v9.32
https://github.com/wekan/wekan/security/advisories/GHSA-hc3x-hq3m-663q

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