Auth bypass in Nextcloud Deck
CVE-2021-39225
Nextcloud is an open-source, self-hosted productivity platform. A missing permission check in Nextcloud Deck before 1.2.9, 1.4.5 and 1.5.3 allows another authenticated users to access Deck cards of another user. It is recommended that the…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.013 (66.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Nextcloud Deck
- Nextcloud Security-advisories — versions < 1.2.9, >= 1.4.0, < 1.4.5, >= 1.5.0, < 1.5.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-39225?
- CVE-2021-39225 is a high-severity vulnerability in Nextcloud Deck, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2021-10-25.
- How severe is CVE-2021-39225?
- High severity. CVSS v3 base score is 8.1 out of 10.