What’s Vulnerable › Vulnerabilities

CVE-2026-108696: CoreShop through 1.5.5 Authorization Bypass via OrderController OrderConfirm and SendReship

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-11 · updated 2026-10-30
• Weakness: CWE-639

Description

CoreShop through 1.5.5 contains an authorization bypass vulnerability in the OrderController that allows authenticated customers to act on other customers' orders by supplying user-controlled ids. Attackers can omit the data field in OrderConfirm or supply another reshipId to SendReship to confirm receipt of others' orders and overwrite return tracking details.

Affected products

• CoreUnion CoreShop: through 1.5.5

References

• https://github.com/CoreUnion/CoreShop
• https://github.com/CoreUnion/CoreShop/blob/ca7408b025bc5f3fd5957a79618ffe991c4e91ab/CoreCms.Net.Services/Order/CoreCmsOrderServices.cs#L2048-L2060
• https://github.com/CoreUnion/CoreShop/blob/ca7408b025bc5f3fd5957a79618ffe991c4e91ab/CoreCms.Net.Web.WebApi/Controllers/OrderController.cs#L281-L294
• https://github.com/CoreUnion/CoreShop/blob/ca7408b025bc5f3fd5957a79618ffe991c4e91ab/CoreCms.Net.Web.WebApi/Controllers/OrderController.cs#L422-L458
• https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/SkVjopPsGe
• https://www.vulncheck.com/advisories/coreshop-through-1.5.5-authorization-bypass-via-ordercontroller-orderconfirm-and-sendreship

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