What’s Vulnerable › Vulnerabilities

CVE-2022-29159: Possibility for anyone to add a stack with existing tasks on anyone's board in Nextcloud Deck

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-20 · updated 2026-06-17
• Weakness: CWE-639

Description

Nextcloud Deck is a Kanban-style project & personal management tool for Nextcloud. In versions prior to 1.4.8, 1.5.6, and 1.6.1, an authenticated user can move stacks with cards from their own board to a board of another user. The Nextcloud Deck app contains a patch for this issue in versions 1.4.8, 1.5.6, and 1.6.1. There are no known currently-known workarounds available.

Affected products

• Nextcloud Deck: before 1.4.8; from 1.5.0 before 1.5.6; from 1.6.0 before 1.6.1 — fixed in 1.4.8, 1.5.6, 1.6.1

How to fix

Upgrade to a fixed version: Nextcloud Deck 1.4.8, 1.5.6, 1.6.1. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/deck/pull/3541
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vqhf-673w-7r3j
• https://hackerone.com/reports/1450117
• https://github.com/nextcloud/deck/pull/3541
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vqhf-673w-7r3j
• https://hackerone.com/reports/1450117

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