CVE-2023-3077
Published: July 10, 2023· Updated: Jun 17, 2026
Official Description
The MStore API WordPress plugin before 3.9.8 does not sanitise and escape a parameter before using it in a SQL statement, leading to a Blind SQL injection exploitable by unauthenticated users. This is only exploitable if the site owner elected to pay to get access to the plugins' pro features, and uses the woocommerce-appointments plugin.
Risk Analysis
The MStore API WordPress plugin is vulnerable to blind SQL injection due to improper parameter sanitization. This critical flaw allows unauthenticated attackers to execute arbitrary SQL queries on sites using specific plugin configurations.
There is no known public exploit for this vulnerability, and it is not in the CISA KEV catalog. The flaw is remotely exploitable.
Update the MStore API plugin to version 3.9.8 or later.
Technical Analysis
CVE-2023-3077 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-3077 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts