What is CVE-2018-16285?

CVE-2018-16285 is a medium-severity vulnerability in Userproplugin Userpro, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-09-06.

How severe is CVE-2018-16285?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-16285 known to be exploited?

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

XSS in Userproplugin Userpro

CVE-2018-16285

The UserPro plugin through 4.9.23 for WordPress allows XSS via the shortcode parameter in a userpro_shortcode_template action to wp-admin/admin-ajax.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (70.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Userproplugin Userpro

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

wpvulndb.com/vulnerabilities/9124 (Exploit, Third Party Advisory)
risataim.blogspot.com/2018/09/xss-en-plugin-userpro-de-wordpress.html (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-16285?: CVE-2018-16285 is a medium-severity vulnerability in Userproplugin Userpro, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-09-06.
How severe is CVE-2018-16285?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-16285 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.