CVE-2026-66683Network attack vector

Unauthenticated disclosure of sensitive data

Published Aug 6, 2026 · Updated Aug 6, 2026

Sensitive data exposure in WP Zone Custom CSS and JavaScript 2.0.16 and earlier allows remote attackers to read undisclosed data. Patchstack has not published the affected endpoint or function, the data returned, or the operation that places sensitive information into a response. No authentication or user interaction is required, and the documented impact is limited to confidentiality; integrity and availability are unaffected.

CVSS severity5.3
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive data exposure in WP Zone Custom CSS and JavaScript 2.0.16 and earlier allows remote attackers to read undisclosed data. Patchstack has not published the affected endpoint or function, the data returned, or the operation that places sensitive information into a response. No authentication or user interaction is required, and the documented impact is limited to confidentiality; integrity and availability are unaffected.

The record

CVE
CVE-2026-66683
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
WP Zone
Product
Custom CSS and JavaScript
Classifications
CWE-201, CAPEC-37
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record 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 <=2.0.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Zone · Custom CSS and JavaScriptversion=n/a <=2.0.16

Published CVSS scores

5.3PatchstackCVSS: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-201Insertion of Sensitive Information Into Sent Data
CAPEC-37Retrieve Embedded Sensitive Data

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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