What is CVE-2016-10884?

CVE-2016-10884 is a high-severity vulnerability in Simple-Membership-Plugin Simple Membership, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2019-08-14.

How severe is CVE-2016-10884?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2016-10884 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Simple-Membership-Plugin Simple Membership

CVE-2016-10884

The simple-membership plugin before 3.3.3 for WordPress has multiple CSRF issues.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2019-08-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Simple-Membership-Plugin Simple Membership

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

wordpress.org/plugins/simple-membership/ (Product, Release Notes)
wpvulndb.com/vulnerabilities/9744 (Third Party Advisory)

Frequently asked questions

What is CVE-2016-10884?: CVE-2016-10884 is a high-severity vulnerability in Simple-Membership-Plugin Simple Membership, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2019-08-14.
How severe is CVE-2016-10884?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2016-10884 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.