VikRentItems Flexible Rental Management System <= 1.2.1 - Unauthenticated Stored Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The VikRentItems – Flexible Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the customer email field of the booking checkout form in versions up to, and including, 1.2.1. This is due to insufficient input sanitization and output escaping in the saveorder() function, which stores the raw email value via VikRequest::getString() (applying only sanitize_text_field(), which does not neutralize HTML attribute-breaking characters such as double quotes), and in the editorder template which echoes the stored custmail value into an HTML input element's value attribute without esc_attr(). This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16143
- 2026-10-03 Alias added: GHSA-3v9q-ch5p-9639
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/197760d1-395d-4dfb-aaa7-5fc5fc0a1ecb?source=cve
- https://plugins.trac.wordpress.org/browser/vikrentitems/tags/1.2.1/admin/views/editorder/tmpl/default.php#L499
- https://plugins.trac.wordpress.org/browser/vikrentitems/tags/1.2.1/site/controller.php#L389
- https://plugins.trac.wordpress.org/changeset/3617300/vikrentitems/trunk/admin/views/editorder/tmpl/default.php
More e4jvikwp vulnerabilities
- TI-2026-67459 VikAppointments Services Booking Calendar <= 1.2.21 - Unauthenticated Arbitrary File Deletion via 'old_vapcfN' Parameter CVSS 3.1CRITICAL 9.1
- TI-2026-58269 WordPress VikAppointments Services Booking Calendar plugin <= 1.2.20 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
- TI-2026-30960 WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1.8.9 - Arbitrary File Deletion vulnerability CVSS 3.1HIGH 8.6
- TI-2026-81752 Cross-site request forgery in VikRentCar leads to code execution CVSS 3.1HIGH 8.8
- TI-2026-13335 VikAppointments – Services Booking Calendar <= 1.2.19 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
- TI-2026-76910 Cross-site request forgery in WordPress VikRentCar plugin CVSS 3.1HIGH 8.8
Sources
- CVE-2026-16143 · CVE Program
- CVE-2026-16143 · NVD
- FIRST EPSS
- GHSA-3v9q-ch5p-9639 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences