Description
Shopper is a Headless e-commerce Admin Panel. Prior to 2.8.0, CreateOrderFromCartAction::execute previously created the Order row before checking and incrementing the discount's total_use counter. Under concurrent checkout pressure (Black Friday, flash sale, viral coupon), the global usage_limit was silently exceeded: orders were committed with the discount fully applied to price_amount while the counter blocked at usage_limit. The merchant had no signal that an over-redemption had occurred. This vulnerability is fixed in 2.8.0.
Published: 2026-05-29
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-9rh9-hf3w-9fgg shopper/framework: Race condition on Discount.usage_limit allows silent over-redemption
History

Sat, 30 May 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Shopperlabs
Shopperlabs shopper
Vendors & Products Shopperlabs
Shopperlabs shopper

Fri, 29 May 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 29 May 2026 18:30:00 +0000

Type Values Removed Values Added
Description Shopper is a Headless e-commerce Admin Panel. Prior to 2.8.0, CreateOrderFromCartAction::execute previously created the Order row before checking and incrementing the discount's total_use counter. Under concurrent checkout pressure (Black Friday, flash sale, viral coupon), the global usage_limit was silently exceeded: orders were committed with the discount fully applied to price_amount while the counter blocked at usage_limit. The merchant had no signal that an over-redemption had occurred. This vulnerability is fixed in 2.8.0.
Title Shopper: Race condition on Discount.usage_limit allows silent over-redemption
Weaknesses CWE-362
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'}


Subscriptions

Shopperlabs Shopper
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-29T19:18:41.685Z

Reserved: 2026-05-19T22:16:39.504Z

Link: CVE-2026-47741

cve-icon Vulnrichment

Updated: 2026-05-29T19:17:05.992Z

cve-icon NVD

Status : Deferred

Published: 2026-05-29T19:16:25.763

Modified: 2026-05-29T20:17:38.110

Link: CVE-2026-47741

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-30T21:18:06Z

Weaknesses