PT-2020-19958 · Nextcloud+1 · Nextcloud Server+1

Published 2019-03-13 · Updated 2020-02-11 · CVE-2020-8121

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Nextcloud Server version 14.0.4

Description A bug in the software could expose more data in reshared link shares than intended by the sharer.

Recommendations For Nextcloud Server version 14.0.4, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Access Control

Exposure of Resource to Wrong Sphere

Weakness Enumeration

CWE-284

CWE-668

Related Identifiers

ALT-PU-2019-1414

CVE-2020-8121

Affected Products

Alt Linux

Nextcloud Server

References · 4

• 🔥 https://hackerone.com/reports/452854 · Exploit
• https://nextcloud.com/security/advisory/?id=NC-SA-2019-003 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8121 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8121 · Vendor Advisory