CVE-2026-103539

ZongXR SuperMarket Instant Buy InstantBuyController.java startBuy missing authentication

MEDIUM
5.4
CVSS Score
Published: October 1, 2026 at 05:00 AM UTC
Updated: October 6, 2026 at 01:16 AM UTC
1 product affected across 1 vendorSuperMarket

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

A weakness has been identified in ZongXR SuperMarket 1.0.0.0. This affects the function startBuy of the file instant-buy/src/main/java/com/supermarket/instantbuy/controller/InstantBuyController.java of the component Instant Buy. Executing a manipulation of the argument Username can lead to missing authentication. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/412349
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/412349/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-103539
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/957826
ExploitIssue Tracking
Source: cverecord
https://github.com/ZongXR/SuperMarket/issues/30

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-306CWE-287

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