CVE-2025-66551 — MEDIUM (6.3)

Q: How severe is CVE-2025-66551?

CVE-2025-66551 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-66551?

Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Tables.

Vulnerability Description

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.

CVSS Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

LOW

Affected Products

Vendor	Product	Versions
Nextcloud	Tables	>= 0.4.0, < 0.8.6

Related Weaknesses (CWE)

CWE-639

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w787-vVendor Advisory
https://github.com/nextcloud/tables/commit/39f24a62fb41fd7a8bda65325f8bbafdc91c7Patch
https://github.com/nextcloud/tables/pull/1810Issue TrackingPatch
https://hackerone.com/reports/3137895Issue TrackingVendor Advisory

FAQ

What is CVE-2025-66551?

CVE-2025-66551 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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. ...

How severe is CVE-2025-66551?

CVE-2025-66551 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-66551?

Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Tables.