Auth bypass in Block User Account

CVE-2026-18960

The Block User Account WordPress plugin before 2.0.1 does not enforce its account block on every authentication path, allowing a blocked user who holds an application password created before the block to retain their full role-level read and write access through the REST API.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% 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-2026-18960: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Block User Account — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18960?
CVE-2026-18960 is a medium-severity vulnerability in Block User Account, classified under Improper Authentication. CVSS score: 5.4/10. Published 2026-08-10.
How severe is CVE-2026-18960?
Medium severity. CVSS v3 base score is 5.4 out of 10.