---
id: CVE-2026-107763
title: >-
  Fastcache by Host.it <= 1.7.5 - Missing Authorization to Authenticated
  (Subscriber+) Arbitrary .htaccess Page-Cache Block Modification via
  updateSettings() admin_action_update Hook
summary: >-
  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 …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-862
vendor: hostspa
product: Fastcache by Host.it
affected:
  - fastcache_by_host.it <= 1.7.5
published: '2026-10-17'
updated: '2026-10-17'
sourceUpdated: '2026-10-17T02:31:04.849Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-107763'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/1f0b4db0-2ccd-47e8-8f40-82e97726f815?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/fastcache-by-host-it/tags/1.7.4/src/Admin.php#L304
  - url: >-
      https://plugins.trac.wordpress.org/browser/fastcache-by-host-it/tags/1.7.4/src/Admin.php#L44
  - url: >-
      https://plugins.trac.wordpress.org/browser/fastcache-by-host-it/tags/1.7.4/src/Core/Platform/Utility.php#L372
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3737013%40fastcache-by-host-it&new=3737013%40fastcache-by-host-it
tags:
  - cve.org
ingestedAt: '2026-10-17T02:57:58.445Z'
epss: 0.00213
epssPercentile: 0.10856
---

## Overview

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.

## Affected

- `fastcache_by_host.it <= 1.7.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.