High severity · published Jul 8, 2026
CVE-2026-6820
VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthenticated Stored Cross-Site Scripting via Booking Form Email Field
7.2
CVSS
0.4%
EPSS
No
On KEV
Description
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VH
VikBooking Hotel Booking Engine & PMS · e4jvikwp
through 1.8.8 · source: vendor
Affected product
VH
VikBooking Hotel Booking Engine & PMS
e4jvikwp
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6820
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/vikbooking/tags/1.8.9/admin/controller.php#L11208
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/vikbooking/tags/1.8.9/site/controller.php#L307
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/e2b4586a-f87d-4a51-8f4e-932d7254518e?source=cve
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