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CVE-2026-19080— Username Enumeration in Menulux Software's Menulux Portal

Quick assessment

Affected
Menulux Software Inc. Menulux Portal
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.

Menulux Portal是Menulux公司的一款门户软件。 Menulux Portal 20260903211448之前版本存在侧信道信息泄露漏洞，该漏洞源于可观察响应差异问题，可能导致账户足迹探测。

CVSS 7.5 · High EPSS 0.42% · P36

Possible ATT&CK Techniques 1 AI

T1589 · Gather Victim Identity Information

Affected Version Matrix 1

VendorProduct Version RangeStatus
Menulux Software Inc. Menulux Portal < 20260903211448 affected
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I. Basic Information for CVE-2026-19080

Vulnerability Information
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Vulnerability Title
Username Enumeration in Menulux Software's Menulux Portal
Source: CVE Program / CVE List V5
Vulnerability Description
Observable response discrepancy vulnerability in Menulux Software Inc. Menulux Portal allows Account Footprinting. This issue affects Menulux Portal: before 20260903211448.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Menulux Portal 侧信道信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Menulux Portal是Menulux公司的一款门户软件。 Menulux Portal 20260903211448之前版本存在侧信道信息泄露漏洞，该漏洞源于可观察响应差异问题，可能导致账户足迹探测。
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
Menulux Software Inc. Menulux Portal 0 ~ 20260903211448 -

II. Public POCs for CVE-2026-19080

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III. Intelligence Information for CVE-2026-19080

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Vendor Advisories for CVE-2026-19080 (1)

Same Patch Batch · Menulux Software Inc. · 2026-09-04 · 4 CVEs total

CVE-2026-19051 7.1 HIGH Plaintext Storage of User Credentials in Menulux Software's Menulux Portal
CVE-2026-18957 5.4 MEDIUM Stored XSS in Menulux Software's Menulux Portal
CVE-2026-19043 4.3 MEDIUM Authorization Bypass Critical POS Management Functions in Menulux Software's Menulux Porta

IV. Related Vulnerabilities

Same product: Menulux Portal
Same vendor: Menulux Software Inc.
Same weakness: CWE-204