---
id: "CVE-2026-111408"
kind: "vulnerability"
aliases: ["CVE-2026-111408"]
title: "Quiz And Survey Master WordPress plugin: object injection lets attackers run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "quiz-master-next", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed", "version-above-11.2.7"]
published_at: "2026-10-19T10:16:46+00:00"
first_seen_at: "2026-10-23T21:57:17+00:00"
updated_at: "2026-10-23T22:33:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111408", "first_seen_at": "2026-10-23T21:57:17+00:00"}]
---

# Quiz And Survey Master WordPress plugin: object injection lets attackers run code

The quiz-master-next WordPress plugin by ExpressTech deserializes untrusted data, which allows PHP object injection. Per the sources, an attacker could potentially reach code execution or take over the site, but the exact gadget chain is not described.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

Check the installed plugin version in the WordPress admin plugins list or wp-content/plugins/quiz-master-next; versions through 11.2.7 are affected.

## Fix

Update Quiz And Survey Master (quiz-master-next) to a version later than 11.2.7; the patched version number is unknown from the sources.

## Timeline

- 2026-10-23T21:57:17+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111408

## From the sources

Deserialization of Untrusted Data vulnerability in ExpressTech Quiz And Survey Master quiz-master-next allows Object Injection.This issue affects Quiz And Survey Master: from n/a through 11.2.7.

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