CVE-2026-39434 HIGH

CVE-2026-39434: WordPress CTX Feed plugin <= 6.6.26 - PHP Object Injection vulnerability

Vendor Webappick

Product CTX Feed

Weakness CWE-502 · Unsafe deserialization

Published June 15, 2026

Last update June 15, 2026

View on NVD All CVEs

CVSS base score

7.2/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Shop manager PHP Object Injection in CTX Feed <= 6.6.26 versions.

Explanation of Vulnerability in Simple Terms

02Summary

CTX Feed versions up to 6.6.26 contain a deserialization vulnerability that allows high-privileged users to execute arbitrary code on the site. An attacker with administrative access can craft malicious serialized data that, when processed by the plugin, runs their own PHP code. This affects confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site with full administrative privileges.

Potential impact on your site

04Site Impact

A compromised admin account can fully control your site, steal data, modify content, or install backdoors.

Conditions required to exploit

05Prerequisites

Attacker must have high-level administrative access to the WordPress site.

Key dates

06Disclosure timeline

June 15, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-39434 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/502.html AskarLabs — CWE-502 write-up Deserialization of Untrusted Data

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