CVE-2026-59521 HIGH

CVE-2026-59521: WordPress Real Testimonials plugin <= 3.1.15 - PHP Object Injection vulnerability

Vendor Shapedplugin Llc

Product Real Testimonials

Weakness CWE-502 · Unsafe deserialization

Published July 13, 2026

Last update July 13, 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

Deserialization of Untrusted Data vulnerability in ShapedPlugin LLC Real Testimonials testimonial-free allows Object Injection.This issue affects Real Testimonials: from n/a through <= 3.1.15.

Explanation of Vulnerability in Simple Terms

02Summary

Real Testimonials versions 3.1.15 and earlier contain a deserialization vulnerability in how they process untrusted data. An authenticated administrator can craft malicious serialized input to execute arbitrary PHP code on the site. This requires high-level admin access and affects confidentiality, integrity, and availability of the installation.

What an attacker can do

03Attacker Capabilities

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

Potential impact on your site

04Site Impact

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

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level access to the WordPress site.

Key dates

06Disclosure timeline

July 13, 2026 CVE published

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-59521 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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