Unauthenticated stored XSS via business_id rendering
Published Aug 15, 2026 · Updated Aug 15, 2026
Stored XSS in vcita Online Booking & Scheduling Calendar for WordPress 4.6.0 and earlier allows remote attackers to inject scripts. The REST API handling in vcita-api-functions.php accepts business_id without adequate sanitization, while scheduler and widget paths emit the stored value without context-appropriate escaping. No account is required; the injected JavaScript runs when a user opens an affected page, enabling actions or data access within that user's web context.
Summary
What happened
Stored XSS in vcita Online Booking & Scheduling Calendar for WordPress 4.6.0 and earlier allows remote attackers to inject scripts. The REST API handling in vcita-api-functions.php accepts business_id without adequate sanitization, while scheduler and widget paths emit the stored value without context-appropriate escaping. No account is required; the injected JavaScript runs when a user opens an affected page, enabling actions or data access within that user's web context.
The record
- CVE
- CVE-2026-14433
- Published
- Aug 15, 2026
- Updated
- Aug 15, 2026
- Vendor
- vcita
- Product
- Online Booking & Scheduling Calendar for WordPress by vcita
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 15, 2026CVE publishedPublication date reported by the CVE source.
- Aug 15, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=4.6.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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