Home/CVE/A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
CVE

CVE-2020-8121

A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.

A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.

HIGH · CVSS 8.1 EPSS 0.00415
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-284Improper Access Control
CWE-668Exposure of Resource to Wrong Sphere
▤

Affected Products & Versions

3
nextcloud server< 13.0.9
nextcloud server>= 14.0.0 and < 14.0.5
nextcloud server>= 14.0.6 and < 15.0.0
⚠

Public Exploits & PoCs

1
pochackerone.com · 452854hackerone.com
▣

Scoring & Timeline

8.1
HIGH · 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:H/I:H/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://nextcloud.com/security/advisory/?id=NC-SA-2019-003Vendor Advisory
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