---
id: CVE-2026-78527
title: >-
  WordPress GS Testimonial Slider plugin <= 3.3.10 - PHP Object Injection
  vulnerability
summary: Contributor PHP Object Injection in GS Testimonial Slider <= 3.3.10 versions.
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: GS Plugins
product: gs-testimonial
affected:
  - gs-testimonial >= n/a <= 3.3.10
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-30T21:21:06.857608Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T22:16:24.495Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-78527'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/gs-testimonial/vulnerability/wordpress-gs-testimonial-slider-plugin-3-3-10-php-object-injection-vulnerability?_s_id=cve
tags:
  - cve.org
epss: 0.00374
epssPercentile: 0.31618
ingestedAt: '2026-11-05T16:24:31.481Z'
---

## Overview

Contributor PHP Object Injection in GS Testimonial Slider <= 3.3.10 versions.

## Affected

- `gs-testimonial >= n/a <= 3.3.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.