Vulnerability · Published Apr 17, 2023 · Assigned by GitHub_M
CVE-2023-30539Users can set up workflows using restricted and invisible system tags in Nextcloud
Medium 6.5
In plain English
A medium-severity improper access control in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | security-advisories | Nextcloud Server: < 24.0.11Nextcloud Server: >= 25.0.0, < 25.0.5Nextcloud Files automated tagging: >= 1.11.0, < 1.11.1Nextcloud Files automated tagging: >= 1.12.0, < 1.12.1Nextcloud Files automated tagging: >= 1.13.0, < 1.13.1Nextcloud Files automated tagging: >= 1.14.0, < 1.14.2Nextcloud Files automated tagging: >= 1.15.0, < 1.15.3Nextcloud Files automated tagging: >= 1.16.0, < 1.16.1 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3m2f-v8x7-9w99 x_refsource_CONFIRM
- https://github.com/nextcloud/files_automatedtagging/pull/705 x_refsource_MISC
- https://github.com/nextcloud/server/pull/37252 x_refsource_MISC
- https://hackerone.com/reports/1895976 x_refsource_MISC