# CVE-2026-45622: Vvveb CMS reflected XSS in product return form

Source: https://junglewise.ai/threats/cve-2026-45622-vvveb-cms-reflected-xss-in-product-return-form  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-15. Updated: 2026-05-15  
License: CC BY 4.0 with a link back

CVE-2026-45622 · Severity: info · CVSS 5.3 · Published 2026-05-15

Vvveb CMS is a content management system used for building websites and e-commerce stores. A security flaw in the product return form allows attackers to execute malicious scripts in a user's web browser. This could lead to unauthorized actions being performed on behalf of the user or the theft of sensitive session information when a user interacts with a specially crafted link or form.

Technologies: [Givanz Vvveb CMS](https://junglewise.ai/threats/technologies/vvveb-cms). Vendors: [Givanz](https://junglewise.ai/threats/vendors/givanz).

## Quick answers

**Is CVE-2026-45622 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45622 being exploited in the wild.

**How severe is CVE-2026-45622?** Informational severity, with a CVSS score of 5.3, published 15 May 2026.

**Which products and versions are affected?** Givanz Vvveb CMS Prior to 1.0.8.3.

**Is there a fix for CVE-2026-45622?** A patch was published on 2026-05-15: Vulnerability fixed in version 1.0.8.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-45622 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-45622?** Check whether you run Givanz Vvveb CMS 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 reflected cross-site scripting (XSS) vulnerability exists in Vvveb CMS versions prior to 1.0.8.3. The vulnerability is located in the public product return form (`/index.php?module=user/return-form&action=save`) within the `customer_order_id` POST parameter. When an order lookup fails, the application inserts the raw input into an "Order %s not found!" error message using `sprintf` and renders it in the frontend template without proper HTML escaping. An unauthenticated attacker can exploit this by tricking a user into submitting a crafted payload, leading to arbitrary script execution in the context of the user's browser session. The issue is fixed in version 1.0.8.3.

## Affected products

- givanz Vvveb CMS Prior to 1.0.8.3

## Timeline

- 2026-05-13: advisory: GitHub Security Advisory published
- 2026-05-15: disclosed: CVE published to NVD
- 2026-05-15: patched: Vulnerability fixed in version 1.0.8.3

## References

- [https://github.com/givanz/Vvveb/security/advisories/GHSA-3xwm-8f6m-cfc6](https://github.com/givanz/Vvveb/security/advisories/GHSA-3xwm-8f6m-cfc6)

## Related threats

- [Vvveb CMS authorization bypass in checkout endpoint](https://junglewise.ai/threats/cve-2026-46408-vvveb-cms-authorization-bypass-in-checkout-endpoint)
- [Givanz Vvveb CMS SQL injection in order history page](https://junglewise.ai/threats/cve-2026-45800-givanz-vvveb-cms-sql-injection-in-order-history-page)
- [Vvveb CMS negative quantity input validation in cart-add endpoint](https://junglewise.ai/threats/cve-2026-44826-vvveb-cms-negative-quantity-input-validation-in-cart-add-endpoint)
- [Givanz Vvveb CMS Stored XSS in comment author field](https://junglewise.ai/threats/cve-2026-44366-givanz-vvveb-cms-stored-xss-in-comment-author-field)
- [Givanz Vvveb CMS reflected XSS in visual editor preview renderer](https://junglewise.ai/threats/cve-2026-41929-givanz-vvveb-cms-reflected-xss-in-visual-editor-preview-renderer)