What’s Vulnerable › Vulnerabilities

CVE-2024-37883: Nextcloud Deck can access comments and attachments of deleted cards

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-14 · updated 2026-06-17
• Weakness: CWE-284

Description

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. A user with access to a deck board was able to access comments and attachments of already deleted cards. It is recommended that the Nextcloud Deck app is upgraded to 1.6.6 or 1.7.5 or 1.8.7 or 1.9.6 or 1.11.3 or 1.12.1.

Affected products

• Nextcloud Deck: from 1.6.0 before 1.6.6; from 1.7.0 before 1.7.5; from 1.8.0 before 1.8.7; from 1.9.0 before 1.9.6; from 1.11.0 before 1.11.3; 1.12.0, 1.12.0-beta1, 1.12.0-beta2, 1.12.0-beta3, 1.12.0-beta4, 1.12.0-beta5 — fixed in 1.11.3, 1.6.6, 1.7.5, 1.8.7, 1.9.6

How to fix

Upgrade to a fixed version: Nextcloud Deck 1.11.3, 1.6.6, 1.7.5, 1.8.7. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/deck/pull/5423
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x45g-vx69-r9m8
• https://hackerone.com/reports/2289333
• https://github.com/nextcloud/deck/pull/5423
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x45g-vx69-r9m8
• https://hackerone.com/reports/2289333

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