CVE-2023-26001 MEDIUM

CVE-2023-26001: WordPress Next Event Calendar <= 1.2 - Cross Site Scripting (XSS) Vulnerability

Vendor Marchetti Design
Product Next Event Calendar
Weakness CWE-79 · XSS
Published June 6, 2025
Last update April 28, 2026

CVSS base score

5.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marchetti Design Next Event Calendar allows Stored XSS. This issue affects Next Event Calendar: from n/a through 1.2.

Explanation of Vulnerability in Simple Terms

02Summary

Next Event Calendar versions 1.2 and earlier contain a cross-site scripting (XSS) vulnerability. An authenticated administrator can inject malicious scripts that execute in other users' browsers when they view affected pages. The vulnerability requires user interaction—the victim must visit a page containing the injected payload. Impact is limited to low-severity data exposure and site defacement.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in other users' browsers to steal session data or deface content.

Potential impact on your site

04Site Impact

Administrators with malicious intent can inject scripts affecting other users; limit admin access to trusted staff.

Conditions required to exploit

05Prerequisites

Attacker must have administrator privileges and the victim must visit a page with the injected payload.

Key dates

06Disclosure timeline

June 6, 2025 CVE published
April 28, 2026 Record updated