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CVE-2025-66553

18
FAUCET Score

CVE-2025-66553 is a medium-severity vulnerability affecting Nextcloud Tables versions prior to 0.8.7 and 0.9.4. Authenticated users could view metadata of columns in other tables by manipulating a numeric ID in a request, leading to a low impact on confidentiality. The vulnerability has a CVSS score of 4.3 and is categorized as CWE-639 (Authorization Bypass Through User-Controlled Key). There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.8.0, < 0.8.7CPE matchmatch criteria
cpe:2.3:a:nextcloud:tables:*:*:*:*:*:nextcloud:*:*
>= 0.9.0, < 0.9.4CPE matchmatch criteria
cpe:2.3:a:nextcloud:tables:*:*:*:*:*:nextcloud:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 18th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / nextcloud/security-advisories/security/advisories/GHSA-p53h-6294-crjw
PatchVendor Advisory
github.com / nextcloud/tables/commit/e975f5bfedb6922f04cdd236cde4e26067fe064e
Patch
github.com / nextcloud/tables/pull/1891
Issue Tracking
hackerone.com / reports/3138721
Issue TrackingVendor Advisory