CVE-2026-66443Known exploitationNetwork attack vector

Unauthenticated log disclosure via exposed REST post type

Published Aug 13, 2026 · Updated Aug 13, 2026

Sensitive data exposure in Pete Nelson REST API Log 1.7.1 and earlier allows remote attackers to read logged API data without authentication. The wp-rest-api-log custom post type is registered with show_in_rest enabled, causing WordPress to publish stored request and response log entries through its REST API. The flaw is reachable over the network without an account when logging has captured entries, and its reported consequence is read-only disclosure.

CVSS severity7.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive data exposure in Pete Nelson REST API Log 1.7.1 and earlier allows remote attackers to read logged API data without authentication. The wp-rest-api-log custom post type is registered with show_in_rest enabled, causing WordPress to publish stored request and response log entries through its REST API. The flaw is reachable over the network without an account when logging has captured entries, and its reported consequence is read-only disclosure.

The record

CVE
CVE-2026-66443
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
Pete Nelson
Product
REST API Log
Classifications
CWE-201, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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 <=1.7.1 changes=[{"at":"1.7.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pete Nelson · REST API Logversion=n/a <=1.7.1 changes=[{"at":"1.7.2","status":"unaffected"}]

Published CVSS scores

7.5PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.

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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 exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Reported exploitation

Technologies

Your stack

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Your stack

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