CVE-2025-31604 MEDIUM

CVE-2025-31604: WordPress Cal.com plugin <= 1.0.0 - Cross Site Scripting (XSS) vulnerability

Vendor Cal.com
Product Cal.com
Weakness CWE-80 · XSS · basic
Published March 31, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in Cal.com Cal.com cal-com allows Stored XSS.This issue affects Cal.com: from n/a through <= 1.0.0.

Explanation of Vulnerability in Simple Terms

02Summary

Cal.com versions up to 1.0.0 contain a cross-site scripting vulnerability that allows an attacker with low-level access to inject malicious scripts. The vulnerability requires user interaction to trigger and can affect other users or components. An authenticated attacker can craft a malicious link or page that, when visited by a victim, executes arbitrary JavaScript in their browser context.

What an attacker can do

03Attacker Capabilities

Inject and execute malicious JavaScript in other users' browsers to steal session data or perform actions on their behalf.

Potential impact on your site

04Site Impact

Users' sessions and data can be compromised if they interact with attacker-crafted content; account takeover or data theft is possible.

Conditions required to exploit

05Prerequisites

Attacker needs a low-privilege account on the Cal.com instance; victim must click a malicious link or visit an attacker-controlled page.

Key dates

06Disclosure timeline

March 31, 2025 CVE published
April 28, 2026 Record updated