CVE-2026-39434

Product Feed Manager for WooCommerce – CTX Feed – Support 220+ Shopping & Social Channels <= 6.6.26 - Authenticated (Shop Manager+) PHP Object Injection

2026-04-07 00:00
daroo

Strategic Overview

Status
Patched in 6.6.27
Affected Version
<= 6.6.26
CVSS
6.6Medium
Weakness type
CWE-502 · Deserialization of Untrusted Data
CVE
CVE-2026-39434
View all Product Feed Manager for WooCommerce – CTX Feed – Support 220+ Shopping & Social Channels vulnerabilities

At a glance

CVE-2026-39434 is a medium-severity Deserialization of Untrusted Data vulnerability in the Product Feed Manager for WooCommerce WordPress plugin, affecting versions <= 6.6.26. It carries a CVSS score of 6.6 (reachable over the network; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Shop Manager level or above. The issue is fixed in version 6.6.27; sites on affected versions should update now. Disclosed April 2026, reported by daroo.

Vulnerability Overview

The Product Feed Manager for WooCommerce – CTX Feed – Support 220+ Shopping & Social Channels plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 6.6.26 via deserialization of untrusted input. This makes it possible for authenticated attackers, with shop manager-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-502: Deserialization of Untrusted Data

Reaching this weakness in Product Feed Manager for WooCommerce <= 6.6.26 takes an account at Shop Manager level or above. Deserialization of untrusted data means the application reconstructs objects from input a caller controls, letting the attacker choose which classes get instantiated and what their properties hold.

A workable chain turns deserialization into file writes, deletions or code execution, depending on what the loaded classes do in their magic methods. For Product Feed Manager for WooCommerce the fix is 6.6.27: builds <= 6.6.26 are affected, anything from 6.6.27 onward is not.

Remediation

Update to version 6.6.27, or a newer patched version

How does WordSec protect against this?

An attacker needs Shop Manager access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Product Feed Manager for WooCommerce 6.6.27 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Scanner
  • Alerts

External References

Related records

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