What is CVE-2020-8122?

CVE-2020-8122 is a medium-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 4.3/10. Published 2020-02-04.

How severe is CVE-2020-8122?

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

Improper input validation in Nextcloud Server

CVE-2020-8122

A missing check in Nextcloud Server 14.0.3 could give recipient the possibility to extend the expiration date of a share they received.

EPSS: 0.007 (48.9th 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:N/I:L/A:N.

Affected products

Nextcloud Nextcloud_server
N/a Nextcloud Server — versions 14.0.4

Weakness classification (CWE)

CWE-284 — Improper Access Control
CWE-20 — Improper Input Validation

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-2020-8122?: CVE-2020-8122 is a medium-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 4.3/10. Published 2020-02-04.
How severe is CVE-2020-8122?: Medium severity. CVSS v3 base score is 4.3 out of 10.