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

published 2025-03-31 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-8796

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Cal.com Cal.com 2.0.0

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-31)

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Affected products

Cal.com Cal.com

Classification

Weakness

CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/cal-com/vulnerability/wordpress-cal-com-plugin-1-0-0-cross-site-scripting-xss-vulne
vdb-entry

Sources

CVE List CVE-2025-31604
NVD CVE-2025-31604

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary