CVE-2026-91020: CWE-472 External Control of Assumed-Immutable Web Parameter in WebToffee Gift Cards for WooCommerce
The WebToffee Gift Cards for WooCommerce WordPress plugin before 1.3.1 does not validate a user-supplied gift card amount server-side before using it as the cart-item price and store-credit coupon value, allowing unauthenticated users to submit an arbitrary or negative amount, bypassing the configured denominations and manipulating the order total to obtain products without paying.
AI Analysis
Technical Summary
The WebToffee Gift Cards for WooCommerce plugin versions prior to 1.3.1 do not perform server-side validation of user-supplied gift card amounts. This lack of validation allows unauthenticated users to submit arbitrary or negative amounts as the cart-item price and store-credit coupon value. Consequently, attackers can bypass the intended gift card denominations and manipulate order totals to reduce payment obligations or obtain products without paying.
Potential Impact
An unauthenticated attacker can exploit this vulnerability to manipulate the order total by submitting arbitrary or negative gift card amounts. This can lead to financial loss for merchants as products may be obtained without proper payment. The vulnerability impacts the integrity of the payment process but does not affect confidentiality or availability.
Mitigation Recommendations
No official patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the plugin or restricting access to gift card functionality to trusted users only.
CVE-2026-91020: CWE-472 External Control of Assumed-Immutable Web Parameter in WebToffee Gift Cards for WooCommerce
Description
The WebToffee Gift Cards for WooCommerce WordPress plugin before 1.3.1 does not validate a user-supplied gift card amount server-side before using it as the cart-item price and store-credit coupon value, allowing unauthenticated users to submit an arbitrary or negative amount, bypassing the configured denominations and manipulating the order total to obtain products without paying.
CVSS v3.1
Score 5.3medium
Affected software
WebToffee Gift Cards for WooCommerce
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The WebToffee Gift Cards for WooCommerce plugin versions prior to 1.3.1 do not perform server-side validation of user-supplied gift card amounts. This lack of validation allows unauthenticated users to submit arbitrary or negative amounts as the cart-item price and store-credit coupon value. Consequently, attackers can bypass the intended gift card denominations and manipulate order totals to reduce payment obligations or obtain products without paying.
Potential Impact
An unauthenticated attacker can exploit this vulnerability to manipulate the order total by submitting arbitrary or negative gift card amounts. This can lead to financial loss for merchants as products may be obtained without proper payment. The vulnerability impacts the integrity of the payment process but does not affect confidentiality or availability.
Mitigation Recommendations
No official patch or fix information is provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the plugin or restricting access to gift card functionality to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-14T16:53:32.098Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abf8f57a43b0b3b89ac0add
Added to database: 10/02/2026, 11:02:47 UTC
Last enriched: 10/02/2026, 11:16:47 UTC
Last updated: 10/03/2026, 03:50:44 UTC
Views: 14
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