CVE-2023-51507 MEDIUM

CVE-2023-51507: WordPress Quiz And Survey Master plugin <= 8.1.16 - Broken Access Control vulnerability

Vendor Expresstech

Product Quiz And Survey Master

Weakness CWE-862 · Missing authorization

Published June 14, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.3/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality None

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey Master: from n/a through 8.1.16.

Explanation of Vulnerability in Simple Terms

02Summary

Quiz And Survey Master through version 8.1.16 lacks proper authorization checks, allowing unauthenticated attackers to modify quiz or survey data via network requests. No user interaction is required. The vulnerability affects data integrity but not confidentiality or availability. Update to a version newer than 8.1.16.

What an attacker can do

03Attacker Capabilities

Modify quiz or survey content without authentication.

Potential impact on your site

04Site Impact

Quiz and survey data can be altered by anyone on the internet without logging in.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 14, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-51507 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

Related vulnerabilities

Identifiers

CVE CVE-2023-51507

CWE CWE-862

CVSS 5.3 / MEDIUM

Affected versions