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TI-2025-40962 Aliases CVE-2025-66551

Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users

Priority LOW 28CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.6 and 0.9.3, a malicious user was able to create their own table and then move a column to a victims table. This vulnerability is fixed in 0.8.6 and 0.9.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00272 19th percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 0.9.3, 0.8.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nextcloudsecurity-advisories0.9.0-beta.1 to before 0.9.3; before 0.8.60.9.3, 0.8.6Patch availableCNA
  • security-advisories Vendornextcloud Affected 0.9.0-beta.1 to before 0.9.3; before 0.8.6 Fixed in 0.9.3, 0.8.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:tables:*:*:*:*:*:nextcloud:*:*0.4.0 to before 0.8.6; 0.9.0 to before 0.9.3Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:tables:*:*:*:*:*:nextcloud:*:* Versions 0.4.0 to before 0.8.6; 0.9.0 to before 0.9.3 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 0.9.3, 0.8.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-66551

References

Patch 2

Advisory 2

  • TI-2026-33296 Nextcloud: SQL Injection in Column Type Parameter Allows Arbitrary SQL Execution CVSS 3.1HIGH 8.2
  • TI-2026-33461 Nextcloud: Tables app allows limited SQLi in ORDER BY with malicious sort order argument for Table Views CVSS 3.1HIGH 7.1
  • TI-2024-35182 Nextcloud Tables has an Authorization Bypass Through User-Controlled Key in Tables CVSS 3.1MEDIUM 6.5
  • TI-2025-40935 Nextcloud Tables app share information not limited to relevant users CVSS 3.1MEDIUM 5.3
  • TI-2025-40964 Nextcloud Tables app allowed users to view columns metadata information of any table CVSS 3.1MEDIUM 4.3
  • TI-2024-35178 Share information of the Nextcloud Tables app is not limited to affected users CVSS 3.1MEDIUM 4.3
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences