# CVE-2026-39790: VikRentCar unauthenticated cross-site scripting (XSS)

Source: https://junglewise.ai/threats/cve-2026-39790-unauthenticated-cross-site-scripting-xss-in-vikrentcar-1-4-6  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-06. Updated: 2026-10-06  
License: CC BY 4.0 with a link back

CVE-2026-39790 · Severity: high · CVSS 7.1 · Published 2026-10-06

VikRentCar is a WordPress plugin for vehicle rental management. An unauthenticated cross-site scripting vulnerability allows attackers to inject malicious scripts that execute in visitors' browsers, potentially stealing session cookies, redirecting users to phishing sites, or defacing the rental site without requiring login credentials.

Vendors: [Joomla!](https://junglewise.ai/threats/vendors/joomla).

## Quick answers

**Is CVE-2026-39790 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-39790 being exploited in the wild.

**How severe is CVE-2026-39790?** High severity, with a CVSS score of 7.1, published 6 October 2026.

**Which products and versions are affected?** Joomla! VikRentCar up to 1.4.6.

**Is there a fix for CVE-2026-39790?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-39790 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-39790?** Check whether you run Joomla! VikRentCar at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin versions up to 1.4.6 fail to properly sanitize or escape user input, allowing unauthenticated attackers to inject arbitrary JavaScript via XSS. The vulnerability is network-accessible and requires no authentication or special preconditions. Successful exploitation enables session hijacking, credential theft, or malware distribution to site visitors.

## Affected products

- Joomla! VikRentCar up to 1.4.6

## Timeline

- 2026-10-06: disclosed

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/vikrentcar/vulnerability/wordpress-vikrentcar-plugin-1-4-6-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/vikrentcar/vulnerability/wordpress-vikrentcar-plugin-1-4-6-cross-site-scripting-xss-vulnerability?_s_id=cve)