Vulnerability Report
Plugin High No patch listed CVE-2026-1800

Fonts Manager | Custom Fonts <= 1.2 - Unauthenticated SQL Injection via fmcfIdSelectedFnt parameter

The Fonts Manager | Custom Fonts plugin for WordPress is vulnerable to time-based SQL Injection via the ‘fmcfIdSelectedFnt’ parameter in all versions up to, and including, 1.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Quick Answer

CVE-2026-1800 is a high severity with CVSS 7.5 SQL Injection issue affecting the Plugin Fonts Manager | Custom Fonts. It affects Versions up to 1.2 and is listed without a confirmed patched release.

Published
Mar 20, 2026
Last Updated
Mar 21, 2026
Slug
fonts-manager-custom-fonts
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Review the full Fonts Manager | Custom Fonts vulnerability cluster

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Risk Profile
7.5 CVSS Score
Weakness
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Researchers
Tarcísio Luchesi De Almeida Silva (Poystick)
Operational Summary

What the operator needs to know

Patch Status
No patched release listed
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Operator Briefing

CVE-2026-1800 is tracked for the Plugin Fonts Manager | Custom Fonts as high severity with CVSS 7.5. The affected range is Versions up to 1.2. No fixed release is listed in this feed entry, so operators should monitor the vendor and reference links before accepting the risk.

Issue Type
SQL Injection
Primary Fixed Version
Not published
Primary Affected Range
Versions up to 1.2
Tracking ID
CVE-2026-1800
Indexing Quality Signals

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Identifier strength
CVE-2026-1800

This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.

Version evidence
Versions up to 1.2

Affected version data gives operators a concrete comparison point against installed WordPress software.

Patch evidence
No patch listed

No patched version is listed, so the record is useful mainly for monitoring and risk acceptance decisions.

Source coverage
1 reference

External references are available for source validation, advisory review, and incident notes.

Verification Checklist

How to validate this finding

Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.

Step 1

Inventory the installed Plugin package and compare its version with Versions up to 1.2.

Step 2

Monitor vendor advisories because this SQL Injection issue has no fixed release listed here.

Step 3

Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.

Step 4

After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.

Detailed Metadata
Software Type Plugin
Software Slug
fonts-manager-custom-fonts View on wordpress.org
CVE CVE-2026-1800
Patched Versions
No patched versions published.
Affected Versions
Versions up to 1.2
Related CVE Cluster

Related CVEs for Fonts Manager | Custom Fonts

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