e4jvikwp VikBooking Hotel Booking Engine & PMS Plugin up to 1.8.13 on WordPress vbfX cross site scripting

Summaryinfo

A vulnerability was found in e4jvikwp VikBooking Hotel Booking Engine & PMS Plugin up to 1.8.13. It has been declared as problematic. This issue affects some unknown processing. Such manipulation of the argument vbfX leads to cross site scripting. This vulnerability is uniquely identified as CVE-2026-15401. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in e4jvikwp VikBooking Hotel Booking Engine & PMS Plugin up to 1.8.13 and classified as problematic. Affected by this issue is some unknown processing. The manipulation of the argument vbfX with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-15401 since 07/10/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• e4jvikwp

Name

• VikBooking Hotel Booking Engine & PMS Plugin

Version

• 1.8.0
• 1.8.1
• 1.8.2
• 1.8.3
• 1.8.4
• 1.8.5
• 1.8.6
• 1.8.7
• 1.8.8
• 1.8.9
• 1.8.10
• 1.8.11
• 1.8.12
• 1.8.13

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion