What is CVE-2015-9394?

CVE-2015-9394 is a high-severity vulnerability in Usersultra Users Ultra Membership, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2019-09-20.

How severe is CVE-2015-9394?

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

Is CVE-2015-9394 known to be exploited?

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

CSRF in Usersultra Users Ultra Membership

CVE-2015-9394

The users-ultra plugin before 1.5.63 for WordPress has CSRF via action=package_add_new to wp-admin/admin-ajax.php.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2019-09-20 · 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 (50.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% 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

Usersultra Users Ultra Membership

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

wpvulndb.com/vulnerabilities/8350 (Not Applicable)
wordpress.org/plugins/users-ultra/ (Product, Release Notes)

Frequently asked questions

What is CVE-2015-9394?: CVE-2015-9394 is a high-severity vulnerability in Usersultra Users Ultra Membership, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2019-09-20.
How severe is CVE-2015-9394?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2015-9394 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.