CVE-2020-8121
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by...
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
- Record
CVE-2020-8121- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 5.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:N - Weakness
- CWE-284, CWE-668
- Updated
- 2026-11-02
CVE List No score
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
- Record
CVE-2020-8121- Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2020-29031 No score
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
- Record
EUVD-2020-29031- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-63cq-5v5v-47mp No score
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by...
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
- Record
GHSA-63cq-5v5v-47mp- Updated
- 2026-11-02
OSV
A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.
- Record
CVE-2020-8121- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8121 is a high vulnerability (CVSS 8.1) in Hackerone Nextcloud Server, published February 4, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. No source names a fixed version.