Under Construction, Coming Soon & Maintenance Mode vulnerabilities
Plugin slug under-construction-maintenance-mode · 3 known vulnerabilities · latest disclosed 2026-04-07 · WordPress.org page
Every listed vulnerability has a fix. Version 2.1.2 or later is not affected by any of them. If your site runs an older version, update it.
1 of 3 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Under Construction, Coming Soon & Maintenance Mode
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 4.3 | <= 2.1.1 | 2.1.2 | CVE-2026-34896 | 2026-04-07 | Advisory |
| Medium 6.1 | <= 1.1.1 | 1.1.2 | none | 2021-02-27 | Advisory |
| High 7.2 | < 1.1.2 | 1.1.2 | none | 2021-02-27 | Advisory |
Check if a site is affected
Enter a site address to see which version of Under Construction, Coming Soon & Maintenance Mode and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Under Construction, Coming Soon & Maintenance Mode plugin safe to use?
All 3 known issues are fixed in current versions (2.1.2 or later). Keeping it updated is what matters.
How do I check which version of Under Construction, Coming Soon & Maintenance Mode my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.