8.8

CVE-2023-30539: nextcloud nextcloud_files_automated_tagging Improper Access Control

CVSS: 8.8v3.1HighModified
Published 17-04-2023Last modified 05-02-2025
Open JSON

Vulnerability summary

CVE-2023-30539 is a high (CVSS 8.8) Improper Access Control vulnerability in nextcloud nextcloud_files_automated_tagging. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 17-04-2023
    PublishedVulnerability first disclosed.
  2. 05-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

0.00 pp

From 0.63% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.63%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nextcloud3 products
  • nextcloud_files_automated_tagging≥ 1.14.0, < 1.14.2 | ≥ 1.15.0, < 1.15.3 | 1.11.0 | 1.12.0 | 1.13.0 | 1.16.0
  • nextcloud_server≥ 21.0.0, < 21.0.9.11 | ≥ 22.0.0, < 22.2.10.11 | ≥ 23.0.0, < 23.0.12.6 | ≥ 24.0.0, < 24.0.11 | ≥ 25.0.0, < 25.0.5
  • security-advisoriesNextcloud Server: < 24.0.11 | Nextcloud Server: >= 25.0.0, < 25.0.5 | Nextcloud Files automated tagging: >= 1.11.0, < 1.11.1 | Nextcloud Files automated tagging: >= 1.12.0, < 1.12.1 | Nextcloud Files automated tagging: >= 1.13.0, < 1.13.1 | Nextcloud Files automated tagging: >= 1.14.0, < 1.14.2 | Nextcloud Files automated tagging: >= 1.15.0, < 1.15.3 | Nextcloud Files automated tagging: >= 1.16.0, < 1.16.1

1 vendor · 3 products

References

4 links