What is CVE-2018-20155?

CVE-2018-20155 is a medium-severity vulnerability in Designmodo Wp Maintenance Mode, classified under Missing Authorization. CVSS score: 4.3/10. Published 2018-12-14.

How severe is CVE-2018-20155?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2018-20155 known to be exploited?

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

Auth bypass in Designmodo Wp Maintenance Mode

CVE-2018-20155

The WP Maintenance Mode plugin before 2.0.7 for WordPress allows remote authenticated subscriber users to bypass intended access restrictions on changes to plugin settings.

Vulnerability class: Broken Access Control

Published 2018-12-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Designmodo Wp Maintenance Mode

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/blog/2016/07/3-vulnerabilities-wp-maintenance-mode/ (Third Party Advisory)

Frequently asked questions

What is CVE-2018-20155?: CVE-2018-20155 is a medium-severity vulnerability in Designmodo Wp Maintenance Mode, classified under Missing Authorization. CVSS score: 4.3/10. Published 2018-12-14.
How severe is CVE-2018-20155?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2018-20155 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.