# CVE-2026-39633: ThemeGoods Grand Car Rental CSRF in WordPress theme

Source: https://junglewise.ai/threats/cve-2026-39633-themegoods-grand-car-rental-csrf-in-wordpress-theme  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-08. Updated: 2026-07-24  
License: CC BY 4.0 with a link back

CVE-2026-39633 · Severity: medium · CVSS 6.5 · Published 2026-04-08

ThemeGoods Grand Car Rental, a WordPress theme used for car rental business websites, is vulnerable to a security flaw that could allow an attacker to trick an administrator into performing unintended actions. By persuading a logged-in user to click a malicious link or visit a specific webpage, an attacker could potentially modify site settings or data without the user's knowledge. This could lead to unauthorized changes to the website's configuration or rental information.

Vendors: [ThemeGoods](https://junglewise.ai/threats/vendors/themegoods).

## Quick answers

**Is CVE-2026-39633 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-39633 being exploited in the wild.

**How severe is CVE-2026-39633?** Medium severity, with a CVSS score of 6.5, published 8 April 2026.

**Which products and versions are affected?** ThemeGoods Grand Car Rental <= 3.6.9.

**Is there a fix for CVE-2026-39633?** 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-2026-39633 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-39633?** Check whether you run ThemeGoods Grand Car Rental 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

A Cross-Site Request Forgery (CSRF) vulnerability exists in the ThemeGoods Grand Car Rental theme for WordPress through version 3.6.9. The flaw is rooted in a lack of proper nonce validation or equivalent CSRF protections within the theme's administrative functions. An unauthenticated remote attacker can exploit this by crafting a malicious request and tricking a logged-in administrator or privileged user into executing it via social engineering (e.g., a malicious link). Successful exploitation allows the attacker to perform actions with the privileges of the victim user, such as modifying theme settings or site content. As of the advisory date, no official patch has been released.

## Affected products

- ThemeGoods Grand Car Rental <= 3.6.9

## Timeline

- 2026-01-14: other: Vulnerability reported by researcher
- 2026-02-13: advisory: Patchstack published advisory
- 2026-04-08: disclosed: CVE published to NVD

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/Wordpress/Theme/grandcarrental/vulnerability/wordpress-grand-car-rental-theme-3-6-9-cross-site-request-forgery-csrf-vulnerability?_s_id=cve](https://patchstack.com/database/Wordpress/Theme/grandcarrental/vulnerability/wordpress-grand-car-rental-theme-3-6-9-cross-site-request-forgery-csrf-vulnerability?_s_id=cve)

## Related threats

- [ThemeGoods Grand Car Rental unauthenticated XSS](https://junglewise.ai/threats/cve-2025-69151-themegoods-grand-car-rental-unauthenticated-xss)