CVE-2024-31421 MEDIUM

CVE-2024-31421: WordPress Popup by Supsystic plugin <= 1.10.27 - Broken Access Control vulnerability

Vendor Supsystic

Product Popup by Supsystic

Weakness CWE-862 · Missing authorization

Published April 15, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

4.3/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality None

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in supsystic Popup by Supsystic popup-by-supsystic.This issue affects Popup by Supsystic: from n/a through <= 1.10.27.

Explanation of Vulnerability in Simple Terms

02Summary

Popup by Supsystic versions up to 1.10.27 lack proper authorization checks, allowing authenticated users with low privileges to modify popup settings and content they should not have access to. An attacker with a basic user account can alter popups created by other users or administrators. Update to a version newer than 1.10.27 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Modify popup settings and content belonging to other users or administrators.

Potential impact on your site

04Site Impact

Unauthorized users can deface or alter popups, potentially disrupting site messaging or injecting malicious content into popups.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site (e.g., subscriber or contributor role).

Key dates

06Disclosure timeline

April 15, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-31421 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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