Description
Unauthenticated Cross Site Scripting (XSS) in Popup Maker <= 1.23.0 versions.
Published: 2026-08-06
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Unauthenticated Cross Site Scripting occurs in the Popup Maker plugin through version 1.23.0, allowing an attacker to inject malicious JavaScript that runs in the browsers of any user who views a popup. The flaw is identified as CWE-79 and can lead to session hijacking, data theft, or defacement of site content, without requiring special privileges.

Affected Systems

The vulnerability affects the WordPress Popup Maker plugin developed by Daniel Iser, specifically all releases up to and including 1.23.0. Users who have installed older versions should upgrade to version 1.24.0 or later to remediate the flaw.

Risk and Exploitability

The CVSS score of 7.1 indicates a moderate to high risk level, yet the EPSS score is not available. The vulnerability is not listed in the CISA KEV catalog. Attackers can likely exploit the flaw by crafted popup content or by input fields that are not properly sanitized, gaining an unauthenticated vector to execute arbitrary code in the victim’s browser.

Generated by OpenCVE AI on August 6, 2026 at 15:25 UTC.

Remediation

Vendor Solution

Update the WordPress Popup Maker plugin to the latest available version (at least 1.24.0).

OpenCVE Recommended Actions

  • Install the latest Popup Maker plugin version 1.24.0 or newer on all WordPress sites that use the plugin.
  • Remove or disable any older instances of the plugin that remain on the site.
  • Inspect existing popup content for potentially malicious scripts and remove or escape any unsanitized JavaScript before publishing.
  • Optionally, configure the plugin to use strict input validation rules or enable a content security policy to mitigate future XSS risks.

Generated by OpenCVE AI on August 6, 2026 at 15:25 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 06 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 06 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
Description Unauthenticated Cross Site Scripting (XSS) in Popup Maker <= 1.23.0 versions.
Title WordPress Popup Maker plugin <= 1.23.0 - Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Patchstack

Published:

Updated: 2026-08-06T15:15:44.491Z

Reserved: 2026-02-25T12:14:40.739Z

Link: CVE-2026-28177

cve-icon Vulnrichment

Updated: 2026-08-06T15:15:37.526Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-06T15:30:04Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')