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Fencer Intel
medium 6.1

CVE-2018-16285 json

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

published 2018-09-06 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-8136

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

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.

Exploit prediction

1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpvulndb.com https://wpvulndb.com/vulnerabilities/9124 referenced PoC, tagged "exploit" by a source, unverified
  • risataim.blogspot.com https://risataim.blogspot.com/2018/09/xss-en-plugin-userpro-de-wordpress.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.