WP REST Cache vulnerabilities

Plugin slug wp-rest-cache · 3 known vulnerabilities · latest disclosed 2026-10-30 · WordPress.org page

Every listed vulnerability has a fix. Version 2026.4.0 or later is not affected by any of them. If your site runs an older version, update it.

2 of 3 rated high or critical (CVSS 7 or more).

Known vulnerabilities in WP REST Cache

SeverityAffected versionsFixed inCVEPublishedDetails
Medium 5.3<= 2026.3.12026.4.0CVE-2026-1168622026-10-30Advisory
High 7.2<= 2026.1.02026.1.1CVE-2026-253472026-03-23Advisory
High 8.1<= 2025.1.02025.1.1CVE-2025-527162025-07-28Advisory

Check if a site is affected

Enter a site address to see which version of WP REST Cache and other plugins it runs, and whether they match a known vulnerability.

Questions

Is the WP REST Cache plugin safe to use?

All 3 known issues are fixed in current versions (2026.4.0 or later). Keeping it updated is what matters.

How do I check which version of WP REST Cache 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.

Check any WordPress site in one click while you browse: Add PluginPeek to Chrome