CVE-2026-66047Network attack vectorHinoki check available

Unauthenticated code execution via weak connect token

Published Aug 31, 2026 · Updated Sep 2, 2026

Remote code execution in Proper Fraction ProfilePress before 4.17.2 allows remote attackers to execute PHP through arbitrary plugins. The ppress_connect_process AJAX handler accepts a caller-controlled URL in the file parameter after validating only a brute-forceable 32-bit connect token, then silently installs and activates the retrieved plugin. No authentication or user interaction is required, but success depends on brute-forcing the token; execution runs as the web-server user.

CVSS severity9.2
Critical
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Remote code execution in Proper Fraction ProfilePress before 4.17.2 allows remote attackers to execute PHP through arbitrary plugins. The ppress_connect_process AJAX handler accepts a caller-controlled URL in the file parameter after validating only a brute-forceable 32-bit connect token, then silently installs and activates the retrieved plugin. No authentication or user interaction is required, but success depends on brute-forcing the token; execution runs as the web-server user.

The record

CVE
CVE-2026-66047
Published
Aug 31, 2026
Updated
Sep 2, 2026
Vendor
ProfilePress Membership Team
Product
ProfilePress
Classifications
CWE-306, CWE-330, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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=0 <4.17.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ProfilePress Membership Team · ProfilePressversion=0 <4.17.2

Published CVSS scores

8.1VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2VulnCheckCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
CWE-330Use of Insufficiently Random Values
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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