CVE-2025-30889 HIGH

CVE-2025-30889: WordPress Testimonial Slider plugin <= 2.0.13 - PHP Object Injection vulnerability

Vendor Pickplugins

Product Testimonial Slider

Weakness CWE-502 · Unsafe deserialization

Published April 3, 2025

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.8/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in PickPlugins Testimonial Slider testimonial allows Object Injection.This issue affects Testimonial Slider: from n/a through <= 2.0.13.

Explanation of Vulnerability in Simple Terms

02Summary

Testimonial Slider versions up to 2.0.13 contain a deserialization vulnerability that allows authenticated attackers to execute arbitrary code on the site. The plugin unsafely deserializes untrusted data, enabling an attacker with low-level access to run their own PHP code with full site privileges. This affects confidentiality, integrity, and availability of the entire WordPress installation.

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

Complete site compromise: data theft, malware injection, user account takeover, and site defacement.

Conditions required to exploit

05Prerequisites

Attacker must have a low-level user account (subscriber or contributor role or higher).

Key dates

06Disclosure timeline

April 3, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-30889 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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