CVE-2025-66128Network attack vector

Unauthenticated unauthorized action via missing capability check

Published Dec 16, 2025 · Updated Dec 16, 2025

Missing authorization in Brevo for WooCommerce 4.0.49 and earlier allows remote attackers to perform an unauthorized action via network requests. Public advisories identify a missing capability check in an unspecified function but do not disclose the function, request route, or affected operation. No account or user interaction is required, and public records do not identify the data, setting, or privileged operation exposed.

CVSS severity5.3
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Brevo for WooCommerce 4.0.49 and earlier allows remote attackers to perform an unauthorized action via network requests. Public advisories identify a missing capability check in an unspecified function but do not disclose the function, request route, or affected operation. No account or user interaction is required, and public records do not identify the data, setting, or privileged operation exposed.

The record

CVE
CVE-2025-66128
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
Brevo
Product
Brevo for WooCommerce
Classifications
CWE-862, CAPEC-180
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=<= 4.0.49

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Brevo · Brevo for WooCommerceversion=n/a <=<= 4.0.49

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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