CVE-2026-56831

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.0, the /cpanel/discounts administrative interface accepts negative fixedamount discount values, persists them in shdiscounts, and passes them through vendor/shopper/cart/src/Discounts/DiscountCalculator.php and...

CVE-2026-56831 Shopper: Negative discount values accepted and propagated through order calculation pipeline

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.0, the /cpanel/discounts administrative interface accepts negative fixedamount discount values, persists them in shdiscounts, and passes them through vendor/shopper/cart/src/Discounts/DiscountCalculator.php and...

EUVD-2026-78917

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.0, the /cpanel/discounts administrative interface accepts negative fixedamount discount values, persists them in shdiscounts, and passes them through vendor/shopper/cart/src/Discounts/DiscountCalculator.php and...

CVE-2026-56831

Shopper Framework (package shopper/framework), a headless e-commerce admin panel, is vulnerable to a business logic flaw (CWE-20) in versions prior to 2.9.0 . The /cpanel/discounts administrative interface accepts negative fixed_amount discount values without server-side validation, persisting th...

CVE-2026-56831 Shopper: Negative discount values accepted and propagated through order calculation pipeline

Shopper is a Headless e-commerce Admin Panel. Prior to 2.9.0, the /cpanel/discounts administrative interface accepts negative fixedamount discount values, persists them in shdiscounts, and passes them through vendor/shopper/cart/src/Discounts/DiscountCalculator.php and...

Shopper: Negative discount values accepted and propagated through order calculation pipeline

Summary The Shopper Framework discount management functionality accepts negative discount values without server-side validation. It was confirmed that negative fixed-amount discounts can be created through the administrative interface, persisted to the database, and subsequently processed by the...

GHSA-5VF4-452P-JJHF Shopper: Negative discount values accepted and propagated through order calculation pipeline

Summary The Shopper Framework discount management functionality accepts negative discount values without server-side validation. It was confirmed that negative fixed-amount discounts can be created through the administrative interface, persisted to the database, and subsequently processed by the...

PT-2026-90547

Summary The Shopper Framework discount management functionality accepts negative discount values without server-side validation. It was confirmed that negative fixed-amount discounts can be created through the administrative interface, persisted to the database, and subsequently processed by the...