CVE-2023-30539

Users can set up workflows using restricted and invisible system tags in Nextcloud

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Nextcloud is a personal home server system. Depending on the set up tags and other workflows this issue can be used to limit access of others or being able to grant them access when there are system tag based files access control or files retention rules. It is recommended that the Nextcloud Server is upgraded to 24.0.11 or 25.0.5, the Nextcloud Enterprise Server to 21.0.9.11, 22.2.10.11, 23.0.12.6, 24.0.11 or 25.0.5, and the Nextcloud Files automated tagging app to 1.11.1, 1.12.1, 1.13.1, 1.14.2, 1.15.3 or 1.16.1. Users unable to upgrade should disable all workflow related apps. Users are advised to upgrade.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-04-12 CVE Reserved
2023-04-17 CVE Published
2024-08-02 CVE Updated
2024-11-22 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/nextcloud/files_automatedtagging/pull/705	2023-04-27
https://github.com/nextcloud/server/pull/37252	2023-04-27

URL	Date	SRC
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3m2f-v8x7-9w99	2023-04-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nextcloud Search vendor "Nextcloud"		Nextcloud Files Automated Tagging Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging"				>= 1.14.0 < 1.14.2 Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging" and version " >= 1.14.0 < 1.14.2"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Files Automated Tagging Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging"				>= 1.15.0 < 1.15.3 Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging" and version " >= 1.15.0 < 1.15.3"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Files Automated Tagging Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging"				1.11.0 Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging" and version "1.11.0"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Files Automated Tagging Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging"				1.12.0 Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging" and version "1.12.0"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Files Automated Tagging Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging"				1.13.0 Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging" and version "1.13.0"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Files Automated Tagging Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging"				1.16.0 Search vendor "Nextcloud" for product "Nextcloud Files Automated Tagging" and version "1.16.0"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 21.0.0 < 21.0.9.11 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 21.0.0 < 21.0.9.11"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 22.0.0 < 22.2.10.11 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 22.0.0 < 22.2.10.11"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 23.0.0 < 23.0.12.6 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 23.0.0 < 23.0.12.6"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 24.0.0 < 24.0.11 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 24.0.0 < 24.0.11"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 24.0.0 < 24.0.11 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 24.0.0 < 24.0.11"		enterprise		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 25.0.0 < 25.0.5 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 25.0.0 < 25.0.5"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				>= 25.0.0 < 25.0.5 Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 25.0.0 < 25.0.5"		enterprise		Affected