# CVE-2026-91020: WebToffee Gift Cards for WooCommerce price manipulation

Source: https://junglewise.ai/threats/cve-2026-91020-the-webtoffee-gift-cards-for-woocommerce-wordpress-plugin-before  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-02. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-91020 · Severity: medium · CVSS 5.3 · Published 2026-10-02

WebToffee Gift Cards for WooCommerce is a WordPress plugin that adds gift card functionality to online stores built with WooCommerce. The plugin fails to validate gift card amounts on the server side, allowing attackers to submit negative or arbitrary amounts to manipulate the order total and purchase products without paying or at deeply discounted prices.

Vendors: [WebToffee](https://junglewise.ai/threats/vendors/webtoffee).

## Quick answers

**Is CVE-2026-91020 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-91020 being exploited in the wild.

**How severe is CVE-2026-91020?** Medium severity, with a CVSS score of 5.3, published 2 October 2026.

**Which products and versions are affected?** WebToffee Gift Cards for WooCommerce before 1.3.1.

**Is there a fix for CVE-2026-91020?** Yes: fixed in 1.3.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-91020 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-91020?** Check whether you run WebToffee Gift Cards for WooCommerce 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.

## How to fix

- Fixed in 1.3.1

## Technical details

The plugin does not perform server-side validation of the gift card amount parameter (wt_credit_amount) before using it as the cart-item price and store-credit coupon value. An unauthenticated attacker can submit a negative or arbitrary amount to bypass configured denominations and manipulate the final order total. This is an input validation vulnerability that allows price manipulation without authentication.

## Affected products

- WebToffee Gift Cards for WooCommerce before 1.3.1

## Timeline

- 2026-09-28: disclosed
- 2026-10-02: advisory

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://wpscan.com/vulnerability/998db4a0-693c-4701-a37e-ec33002e1417/](https://wpscan.com/vulnerability/998db4a0-693c-4701-a37e-ec33002e1417/)