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CVE-2026-47741— Shopper: Race condition on Discount.usage_limit allows silent over-redemption

Quick assessment

Affected
shopperlabs shopper
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

shopper是Shopper Labs开源的一个无头电商管理后台。 Shopper 2.8.0之前版本存在安全漏洞，该漏洞源于CreateOrderFromCartAction::execute在检查并增加折扣的total_use计数器之前创建订单行，可能导致并发结账压力下全局使用限制被静默超过，订单以折扣完全应用于价格金额而计数器阻塞在usage_limit处提交。

CVSS 5.9 · Medium EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
shopperlabs shopper < 2.8.0 affected
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I. Basic Information for CVE-2026-47741

Vulnerability Information
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Vulnerability Title
Shopper: Race condition on Discount.usage_limit allows silent over-redemption
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
shopper 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
shopper是Shopper Labs开源的一个无头电商管理后台。 Shopper 2.8.0之前版本存在安全漏洞，该漏洞源于CreateOrderFromCartAction::execute在检查并增加折扣的total_use计数器之前创建订单行，可能导致并发结账压力下全局使用限制被静默超过，订单以折扣完全应用于价格金额而计数器阻塞在usage_limit处提交。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
shopperlabs shopper < 2.8.0 -

II. Public POCs for CVE-2026-47741

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III. Intelligence Information for CVE-2026-47741

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Patches & Fixes for CVE-2026-47741 (1)

Vendor Advisories for CVE-2026-47741 (1)

Security Blog Posts for CVE-2026-47741 (1)

Same Patch Batch · shopperlabs · 2026-05-29 · 5 CVEs total

CVE-2026-47744 9.9 CRITICAL Shopper: Authorization bypass and RBAC privilege escalation in team settings
CVE-2026-47740 8.1 HIGH Shopper: Authorization bypass in multiple Livewire admin components
CVE-2026-47745 6.5 MEDIUM Shopper: Missing per-action authorization on PaymentMethods, Currencies and Carriers admin
CVE-2026-47742 6.5 MEDIUM Shopper: Missing authorization on Product admin Livewire sub-form components

IV. Related Vulnerabilities

Same product: shopper
Same vendor: shopperlabs
Same weakness: CWE-362

V. Comments for CVE-2026-47741

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