Information disclosure in Zportals

CVE-2026-18365

The zportals WordPress plugin before 6.4.2 does not perform any capability or nonce check on one of its AJAX actions, allowing users with a subscriber-level account to disclose the display name and email address of every registered user, including administrators.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-18365: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Zportals

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18365?
CVE-2026-18365 is a medium-severity vulnerability in Zportals, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-09-23.
How severe is CVE-2026-18365?
Medium severity. CVSS v3 base score is 4.3 out of 10.