9.8

CVE-2023-2734: inspireui mstore_api

CVSS: 9.8v3.1CriticalModified
Published 25-05-2023Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2023-2734 is a critical (CVSS 9.8) vulnerability in inspireui mstore_api. EPSS estimates a 3.81% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
3.81%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-05-2023
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

The MStore API plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.9.1. This is due to insufficient verification on the user being supplied during the cart sync from mobile REST API request through the plugin. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the user id.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

3.81%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

0.00 pp

From 3.81% on 19-09-2026

19-09-202619-10-2026
EPSS score
3.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Inspireui2 products
Wordpress1 product
  • mstore-api≤ 3.9.1 (fixed in 3.9.2)

2 vendors · 3 products

References

4 links