CVE-2018-3762

4.3 mediumEPSS 0.9%

Medium (4.3) in nextcloud nextcloud server. EPSS 0.9% chance of exploitation in the next 30 days.

Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWEs: CWE-281, CWE-284
Published: 2018-07-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nextcloud:nextcloud_server

References

https://hackerone.com/reports/358339
https://nextcloud.com/security/advisory/?id=nc-sa-2018-002
https://hackerone.com/reports/358339
https://nextcloud.com/security/advisory/?id=nc-sa-2018-002

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