What is CVE-2026-15401?

CVE-2026-15401 is a high-severity vulnerability in E4jvikwp Vikbooking Hotel Booking Engine & Pms, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-07-24.

How severe is CVE-2026-15401?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in E4jvikwp Vikbooking Hotel Booking Engine & Pms

CVE-2026-15401

The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'vbfX' parameter in all versions up to, and including, 1.8.13 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. The vbfX custom-field value is stored via the public-facing saveorder task, which has no capability or authentication check enforced by default, enabling fully unauthenticated submission of malicious payloads.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (27.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

E4jvikwp Vikbooking Hotel Booking Engine & Pms — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-15401?: CVE-2026-15401 is a high-severity vulnerability in E4jvikwp Vikbooking Hotel Booking Engine & Pms, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-07-24.
How severe is CVE-2026-15401?: High severity. CVSS v3 base score is 7.2 out of 10.