CVE-2026-1800

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

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.41%Up 0.3 points since Mar 21, 2026

What each source reports

CVE List Score used 7.5

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

Record: CVE-2026-1800
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-89
Updated: 2026-11-02

EUVDEUVD-2026-14011 7.5

Record: EUVD-2026-14011
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-h49v-28c5-9j37 7.5

The Fonts Manager | Custom Fonts plugin for WordPress is vulnerable to time-based SQL Injection...

Record: GHSA-h49v-28c5-9j37
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-89
Updated: 2026-11-02

NVD 7.5

Record: CVE-2026-1800
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-89
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-1800 is a high vulnerability (CVSS 7.5) in Wisdomlogix Fonts Manager | Custom Fonts, published March 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.