What is CVE-2020-8235?

CVE-2020-8235 is a medium-severity vulnerability in Nextcloud Deck, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2020-10-05.

How severe is CVE-2020-8235?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Nextcloud Deck

CVE-2020-8235

Missing access control in Nextcloud Deck 1.0.4 caused an insecure direct object reference allowing an attacker to view all attachments.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.008 (51.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Nextcloud Deck — versions 1.0.4
N/a Nextcloud Deck App — versions Fixed in 1.0.5

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC)
support@hackerone.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-8235?: CVE-2020-8235 is a medium-severity vulnerability in Nextcloud Deck, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2020-10-05.
How severe is CVE-2020-8235?: Medium severity. CVSS v3 base score is 4.3 out of 10.