CVE-2026-25564: WeKan < 8.19 Checklist Deletion IDOR via Missing Relationship Validation

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-07 · updated 2026-07-14
Weakness: CWE-639

Description

WeKan versions prior to 8.19 contain an insecure direct object reference (IDOR) in checklist creation and related checklist routes. The implementation does not verify that the supplied cardId belongs to the supplied boardId, allowing cross-board ID tampering by manipulating identifiers.

Affected products

WeKan: before 8.19 — fixed in 8.19

How to fix

Upgrade to a fixed version: WeKan 8.19. Check the vendor advisory for mitigations.

References

https://github.com/wekan/wekan/commit/08a6f084eba09487743a7c807fb4a9000fcfa9ac
https://wekan.fi/
https://www.vulncheck.com/advisories/wekan-checklist-deletion-idor-via-missing-relationship-validation

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