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TI-2023-02882 Aliases CVE-2023-3076GHSA-gwr5-qqvh-c57m

MStore API < 3.9.9 - Unauthenticated Privilege Escalation

Priority HIGH 82CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.

Summary

The MStore API WordPress plugin before 3.9.9 does not prevent visitors from creating user accounts with the role of their choice via their wholesale REST API endpoint. This is only exploitable if the site owner paid to access the plugin's pro features.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02168 82nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed MStore API (Unknown): 3.9.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownMStore APIbefore 3.9.93.9.9Patch availableCNA
  • MStore API VendorUnknown Affected before 3.9.9 Fixed in 3.9.9 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:inspireui:mstore_api:*:*:*:*:*:wordpress:*:*before 3.9.9Vulnerableinspireui
  • cpe:2.3:a:inspireui:mstore_api:*:*:*:*:*:wordpress:*:* Versions before 3.9.9 Vulnerable ·inspireui

Remediation

  • Fix · CNA MStore API (Unknown) Fixed in 3.9.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3076
  2. 2026-10-03 Alias added: GHSA-gwr5-qqvh-c57m

References

Exploit 1

  • TI-2023-02559 MStore API <= 3.9.2 - Authentication Bypass CVSS 3.1CRITICAL 9.8
  • TI-2023-02883 MStore API < 3.9.8 - Unauthenticated Blind SQLi CVSS 3.1CRITICAL 9.8
  • TI-2023-03070 MStore API <= 4.10.7 - Unauthorized Account Access and Privilege Escalation CVSS 3.1CRITICAL 9.8
  • TI-2023-02994 MStore API <= 4.0.1 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2023-02561 MStore API <= 3.9.1 - Authentication Bypass CVSS 3.1CRITICAL 9.8
  • TI-2023-02934 MStore API < 3.9.7 - Subscriber+ Unauthorized Settings Update CVSS 3.1MEDIUM 4.3
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences