Fastcache by Host.it vulnerabilities
Plugin slug fastcache-by-host-it · 2 known vulnerabilities · latest disclosed 2026-10-16 · WordPress.org page
Every listed vulnerability has a fix. Version 1.7.6 or later is not affected by any of them. If your site runs an older version, update it.
1 of 2 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Fastcache by Host.it
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 4.3 | <= 1.7.5 | 1.7.6 | CVE-2026-107763 | 2026-10-16 | Advisory |
| High 7.2 | <= 1.7.4 | 1.7.5 | CVE-2026-104021 | 2026-10-09 | Advisory |
Check if a site is affected
Enter a site address to see which version of Fastcache by Host.it and other plugins it runs, and whether they match a known vulnerability.
Questions
Is the Fastcache by Host.it plugin safe to use?
All 2 known issues are fixed in current versions (1.7.6 or later). Keeping it updated is what matters.
How do I check which version of Fastcache by Host.it 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.