CVE-2026-73401Network attack vectorHinoki check available

Unauthenticated unauthorized action execution

Published Aug 13, 2026 · Updated Aug 13, 2026

Missing authorization in InstaWP Connect 0.1.3.7 and earlier allows remote attackers to perform an unauthorized action over the network. Patchstack and the vendor changelog do not identify the affected endpoint, handler, resource, or omitted authorization check. No account or user interaction is required; the published impact is limited to a low-integrity change, but the exact data or operation is undisclosed.

CVSS severity5.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in InstaWP Connect 0.1.3.7 and earlier allows remote attackers to perform an unauthorized action over the network. Patchstack and the vendor changelog do not identify the affected endpoint, handler, resource, or omitted authorization check. No account or user interaction is required; the published impact is limited to a low-integrity change, but the exact data or operation is undisclosed.

The record

CVE
CVE-2026-73401
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
InstaWP
Product
InstaWP Connect
Classifications
CWE-862, CAPEC-180, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=0.1.3.7 changes=[{"at":"0.1.3.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

InstaWP · InstaWP Connectversion=n/a <=0.1.3.7 changes=[{"at":"0.1.3.8","status":"unaffected"}]

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
T1190Exploit Public-Facing Application

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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