---
id: CVE-2025-15611
title: >-
  The Popup Box  WordPress plugin before 5.5.0 does not properly validate nonces
  in the add_or_edit_popupbox() function before saving popup data, allowing
  unauthenticated attackers to perform Cross-Site Request Forgery attacks
summary: >-
  The Popup Box  WordPress plugin before 5.5.0 does not properly validate nonces
  in the add_or_edit_popupbox() function before saving popup data, allowing
  unauthenticated attackers to perform Cross-Site Request Forgery attacks. When
  an aut…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-918
vendor: ays-pro
product: popup_box
affected:
  - popup_box < 5.5.0
patched:
  - popup_box 5.5.0
published: '2026-04-07'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T22:10:00.273'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15611'
references:
  - url: 'https://wpscan.com/vulnerability/089ea763-2421-4089-a220-251421f7f226/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00136
epssPercentile: 0.02542
ingestedAt: '2026-09-30T22:27:27.748Z'
---

## Overview

The Popup Box  WordPress plugin before 5.5.0 does not properly validate nonces in the add_or_edit_popupbox() function before saving popup data, allowing unauthenticated attackers to perform Cross-Site Request Forgery attacks. When an authenticated admin visits a malicious page, the attacker can create or modify popups with arbitrary JavaScript that executes in the admin panel and frontend.

## Affected

- `popup_box < 5.5.0`

## Remediation

Upgrade past the affected range:

- `popup_box 5.5.0`