Unauthenticated stored XSS via unescaped vagaro_code
Published Mar 21, 2026 · Updated Mar 21, 2026
Stored cross-site scripting in Vagaro Booking Widget 0.3 and earlier allows remote attackers to inject scripts via vagaro_code. The plugin stores the vagaro_code request value without adequate sanitization and later emits it in widget output without escaping. No account is required to plant the payload; script execution occurs whenever a visitor opens the affected page, enabling page-content manipulation and access to data available to that page.
Summary
What happened
Stored cross-site scripting in Vagaro Booking Widget 0.3 and earlier allows remote attackers to inject scripts via vagaro_code. The plugin stores the vagaro_code request value without adequate sanitization and later emits it in widget output without escaping. No account is required to plant the payload; script execution occurs whenever a visitor opens the affected page, enabling page-content manipulation and access to data available to that page.
The record
- CVE
- CVE-2026-3003
- Published
- Mar 21, 2026
- Updated
- Mar 21, 2026
- Vendor
- Vagaro
- Product
- Vagaro Booking Widget
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 21, 2026CVE publishedPublication date reported by the CVE source.
- Mar 21, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=* <=0.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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