CVE-2026-6818

highCVSS 7.2covered by 1 sourcefirst seen 2026-07-08

The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'special_requests' parameter in all versions up to, and including, 1.8.8 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.

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Exploitation outlook

Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-6818: The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Si…nvd · 2026-07-08

External references

NVD record for CVE-2026-6818

CVE.org record

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