CVE-2023-39959

Existence of calendars and address books can be checked by unauthenticated users

State: Published
Severity: 3.5 Low
Published: Aug 10, 2023
Updated: Oct 8, 2024
Reserved: Aug 7, 2023

Description

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.9, 26.0.4, and 27.0.1, unauthenticated users could send a DAV request which reveals whether a calendar or an address book with the given identifier exists for the victim. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.

Scores

CVSS	Score	Vector	Source
3.1	3.5 Low	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N	GitHub_M

Weaknesses

CWE-284 Improper Access Control

Affected Products

Product	Versions
security-advisoriesnextcloud	>= 25.0.0, < 25.0.9Affected >= 26.0.0, < 26.0.4Affected >= 27.0.0, < 27.0.1Affected

References

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