Profile Builder Plugin - Arbitrary File Upload (CVE-2026-82607)

Q: Am I affected by this vulnerability?

You are affected if your site runs Profile Builder Plugin.

Q: How do I fix it?

Update Profile Builder Plugin to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

Q: What can an attacker actually do?

This is a Arbitrary File Upload flaw. An attacker who exploits it can place an executable file on the server and then run it.

CVE-2026-82607

Vulnerability CVE-2026-82607 PLUGIN profile-builder MEDIUM

A vulnerability was found in Cozmoslabs Profile Builder Plugin up to 3.16.1 on WordPress. The impacted element is the function wppb_ajax_simple_avatar of the file /wp-admin/admin-ajax.php of the component Avatar Simple Upload AJAX Handler. Performing a manipulation results in unrestricted upload. The attack is possible to be carried out remotely. The exploit has been made public and could be used. Upgrading to version 3.16.2 is sufficient to resolve this issue. It is suggested to upgrade the affected component.

CVE-2026-82607

MEDIUM CVSS 5.5 Published 2026-08-31 Updated 2026-08-31

AI Risk Moderate (54/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P4 Planned

Severity Band MEDIUM

CVSS Vector CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Components 1

Reference Links 6

AI Risk Engine Moderate (54/100)

Exploitability Low

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2026-08-31 CVE published and first recorded in the threat feed.
2026-08-31 Record updated with latest vulnerability metadata.
2026-09-01 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 9 days ago

AI enriched 9 days ago (2026-09-01 00:48 UTC)

Technical Summary

Potential Impact

Severity is MEDIUM (CVSS 5.5). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Low based on low-bar exploit prerequisites.

Primary risk drivers: low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 54/100 (Moderate, Low) with priority P4 Planned. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Profile Builder Plugin PLUGIN · profile-builder Affected: >= 3.16.0, <= 3.16.0 Fixed version not specified

References

What to do about this

Patch promptly The consequence is significant even where an attacker needs a foothold first.

Fix it

Update Profile Builder Plugin to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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