CVE-2019-15621

MEDIUM
6.5
CVSS Score
Published: February 4, 2020 at 07:08 PM UTC
Updated: June 17, 2026 at 02:20 AM UTC
1 product affected across 1 vendorNextcloud/server

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 14.0.1315.0.0 ≤ v < 15.0.916.0.0 ≤ v < 16.0.216.0.2
Affected range stops below 14.0.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.0.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.2, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-281

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