CVE-2026-82607Public exploitNetwork attack vectorHinoki check available

Unauthenticated media uploads via omitted server validation

Published Aug 31, 2026 · Updated Aug 31, 2026

Unrestricted file upload in Cozmoslabs Profile Builder 3.16.0 through 3.16.1 allows remote attackers to create media attachments. The wppb_ajax_simple_avatar handler passes uploaded files to WordPress media functions without calling wppb_valid_simple_upload, bypassing server-side extension and per-field size checks. Exploitation requires a public registration form with Avatar Simple Upload enabled; it creates orphaned Media Library attachments within WordPress MIME rules, not default remote code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Unrestricted file upload in Cozmoslabs Profile Builder 3.16.0 through 3.16.1 allows remote attackers to create media attachments. The wppb_ajax_simple_avatar handler passes uploaded files to WordPress media functions without calling wppb_valid_simple_upload, bypassing server-side extension and per-field size checks. Exploitation requires a public registration form with Avatar Simple Upload enabled; it creates orphaned Media Library attachments within WordPress MIME rules, not default remote code execution.

The record

CVE
CVE-2026-82607
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
Cozmoslabs
Product
Profile Builder
Classifications
CWE-284, CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 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=3.16.0
  2. Affected versionversion=3.16.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cozmoslabs · Profile Builderversion=3.16.0; version=3.16.1

Published CVSS scores

7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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 exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-434Unrestricted Upload
T1190Exploit Public-Facing Application

Public exploit references

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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