Home/CVE/Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is op
CVE

CVE-2020-8119

Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is op

Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the gallery app.

MEDIUM · CVSS 4.3 EPSS 0.00517
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-285Improper Authorization
CWE-863Incorrect Authorization
▤

Affected Products & Versions

3
nextcloud server< 15.0.13
nextcloud server>= 16.0.0 and < 16.0.6
nextcloud server>= 17.0.0 and < 17.0.1
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Feb 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2020:0229-1
suse-csafopenSUSE-SU-2020:0220-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html
https://hackerone.com/reports/719426Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2019-012Vendor Advisory
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