CVE-2026-3003 — Vagaro Booking Widget <= 0.3 - Unauthenticated Stored Cross-Site Scripting via 'vagaro_code'

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HIGH

Vagaro Booking Widget <= 0.3 - Unauthenticated Stored Cross-Site Scripting via 'vagaro_code'

Published Mar 21, 2026

7.2

HIGH

CVSS 3.1

EPSS 0.39%

Description

The Vagaro Booking Widget plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘vagaro_code’ parameter in all versions up to, and including, 0.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

Vendor Vagaro Product Vagaro Booking Widget Default
unaffected
- Version
  -
  Status
  affected
  Constraints
  <=0.3

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Vagaro

Vagaro Booking Widget

unaffected

Version	Status	Constraints
-	affected	<=0.3

Remediation

No remediation recorded yet.

Metrics

0.39% 0.00392

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00392

Score over time

Mar–Oct 2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.39% (0.00392)	30.92th	v5 (v2026.06.15)
Jun 15, 2026	0.29% (0.00287)	20.21th	v5 (v2026.06.15)
Mar 21, 2026	0.06% (0.00061)	19.05th	v4 (v2025.03.14)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (3)

Link	Providers	Tags
https://plugins.trac.wordpress.org/browser/vagaro-booking-widget/trunk/vagaro-booking-widget.php#L104
https://plugins.trac.wordpress.org/browser/vagaro-booking-widget/trunk/vagaro-booking-widget.php#L230
https://www.wordfence.com/threat-intel/vulnerabilities/id/7a480473-ceae-4621-9b13-e0f0543c57e3?source=cve