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

6.5 CVSS

Description

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

Classification

CVE ID: CVE-2025-31604

CVSS Base Severity: MEDIUM

CVSS Base Score: 6.5

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

Problem Types

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Affected Products

Vendor: Cal.com

Product: Cal.com

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.03% (probability of being exploited)

EPSS Percentile: 8.45% (scored less or equal to compared to others)

EPSS Date: 2025-04-21 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-31604
https://patchstack.com/database/wordpress/plugin/cal-com/vulnerability/wordpress-cal-com-plugin-1-0-0-cross-site-scripting-xss-vulnerability?_s_id=cve

Timeline