All vulnerabilities
CVE-2026-107763

Fastcache by Host.it <= 1.7.5 - Missing Authorization to Authenticated (Subscriber+) Arbitrary .htaccess Page-Cache Block Modification via updateSettings() admin_action_update Hook

hostspa Fastcache by Host.it
Open in ThreatlineRecord JSON
CVSS
4.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 11% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published17 Oct 2026Updated 18 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

Description

The Fastcache by Host.it plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to add or remove the plugin's page-cache rewrite rules in the site's root .htaccess file.

Text from CVE List

Affected versions 1

  • Fastcache by Host.itaffected: all versions through 1.7.5CVE List

References 5