CVE-2023-30539

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

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.30%
Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3m2f-v8x7-9w99 vendor advisory
https://github.com/nextcloud/files_automatedtagging/pull/705 issue tracking patch
https://github.com/nextcloud/server/pull/37252 patch
https://hackerone.com/reports/1895976 permissions required

Frequently Asked Questions

What is the severity of CVE-2023-30539?
CVE-2023-30539 has been scored as a medium severity vulnerability.
How to fix CVE-2023-30539?
To fix CVE-2023-30539, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-30539 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-30539 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-30539?
CVE-2023-30539 affects nextcloud security-advisories.
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