CRITICAL

CVE-2018-11309

CVSS v3

9.8

CRITICAL

EPSS Score

2.1 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for the software you run.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-11309 yet.

Full record on NVD

Description

Blind SQL injection in coupon_code in the MemberMouse plugin 2.2.8 and prior for WordPress allows an unauthenticated attacker to dump the WordPress MySQL database via an applyCoupon action in an admin-ajax.php request.

Technical details

Published: 2018-05-28

Frequently asked questions

What is CVE-2018-11309?

Is CVE-2018-11309 actively exploited?

Active exploitation of CVE-2018-11309 has not been confirmed. Its EPSS score was 2.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-11309?

CVE-2018-11309 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Hear about the next vulnerability in your software

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? CVE Watch alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database