VikRentItems booking email permits unauthenticated stored XSS
VikRentItems through 1.2.1 accepts the public booking form's customer email value in saveorder(), where VikRequest::getString() applies sanitize_text_field() but does not neutralize attribute-breaking quotes. The plugin stores that custmail value and later inserts it into the administrative edit-order template's input value without esc_attr(). An unauthenticated attacker can therefore place script-bearing markup in a booking that executes in the site origin when staff open the affected order.
- Component
- VikRentItems Flexible Rental Management System
- Plugin slug
vikrentitems- Affected
- <= 1.2.1
- Safe version
> 1.2.1- Published
- Aug 05, 2026
This CVE was published Aug 05, 2026 and is one of 2 known issues for this plugin.
Update, patch or deactivate.
Update VikRentItems to a release after 1.2.1. The authoritative record establishes the affected boundary and links the upstream escaping correction but does not identify the first fixed release. Remove malicious markup from stored booking email fields before staff inspect untrusted orders.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N