DOM-Based XSS in WPCal.Io Allows Client-Side Code Injection

Publication date: 2025-12-30

Last updated on: 2026-04-23

Assigner: Patchstack

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in revmakx WPCal.io wpcal allows DOM-Based XSS.This issue affects WPCal.io: from n/a through <= 0.9.5.9.

CVSS Scores

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Meta Information

Published

2025-12-30

Last Modified

2026-04-23

Generated

2026-07-06

AI Q&A

2025-12-30

EPSS Evaluated

2026-07-05

NVD

CVE-2025-66103

Affected Vendors & Products

Vendor	Product	Version / Range
revmakx	wpcal.io	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a DOM-Based Cross-site Scripting (XSS) issue in Revmakx WPCal.Io, where improper neutralization of input during web page generation allows attackers to inject malicious scripts into the web page. This affects versions up to 0.9.5.9.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the context of the affected web application, potentially leading to unauthorized actions, data theft, or manipulation of user sessions. It can compromise confidentiality, integrity, and availability of the application and its data.

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