Fast Index <= 2.2 - Unauthenticated Sensitive Information Exposure via Publicly Stored Service Account Key Files

ID

WPSEC-2026-1123

Plugin

Fast Index for Google Indexing API (fast-index)

Affected

all versions before 3.0.0

Remediation

Update to 3.0.0 or later.

CVSS 3.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness

CWE-552

Usage

Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-16

Attack surface

Fast Index on WPSec AttackSurface

Fix released

2026-10-15

Published

2026-10-16

Description

The Fast Index for Google Indexing API plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.2 due to uploaded Google service account JSON key files, including their private keys, being stored in the publicly accessible uploads folder. This makes it possible for unauthenticated attackers who know or can guess the file's address to download the service account key, which can grant owner-level access to the site's Google Search Console property and use of the site's Indexing API quota.

References

• https://wpsec.com/vuln/WPSEC-2026-1123/
• https://plugins.svn.wordpress.org/fast-index/tags/3.0.0/
• https://wordpress.org/plugins/fast-index/

Published by WPSec. Provided as is, without warranty. Corrections: contact us.

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