CVE-2026-102364
Medium
Description
mall4j through 4.0 fails to validate the sysType field in sa-token sessions, allowing storefront customers to authenticate as back-office users by reusing their session tokens. Attackers can register on the public storefront and use their customer session token to access admin endpoints lacking @PreAuthorize permission checks, including menu listings, file uploads, and configuration endpoints.
SeverityMedium
CVSS5.4
Exploit probability—
ProductGz-yami Mall4j
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-287Improper authentication
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gz-yami mall4j | v ≤ 4.0 | — |
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