CVE-2023-28470Network attack vector

Unauthenticated FTS metadata disclosure via nsstats endpoint

Published Mar 23, 2023 · Updated Feb 24, 2025

Authentication bypass in Couchbase Server 6.6.0 through 7.1.3 allows remote attackers to read FTS deployment metadata. The /api/nsstats FTS statistics endpoint omits correct authentication and returns bucket names, FTS index names, and index configuration. No credentials or user interaction are required; the disclosed metadata excludes bucket and index contents, limiting the documented consequence to configuration exposure.

CVSS severity5.3
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Couchbase Server 6.6.0 through 7.1.3 allows remote attackers to read FTS deployment metadata. The /api/nsstats FTS statistics endpoint omits correct authentication and returns bucket names, FTS index names, and index configuration. No credentials or user interaction are required; the disclosed metadata excludes bucket and index contents, limiting the documented consequence to configuration exposure.

The record

CVE
CVE-2023-28470
Published
Mar 23, 2023
Updated
Feb 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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