CVE-2020-8223

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS v2.0

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

1.47% chance of exploitation in the next 30 days, 72th percentile

Published

2020-10-05

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://hackerone.com/reports/889243

References

• CVE Record
• NVD entry

Related

• CVE-2020-8218
• CVE-2020-8224
• CVE-2020-8214
• CVE-2020-8227
• CVE-2020-8209
• CVE-2020-8228