5.3

CVE-2025-14351: brainstormforce custom fonts – host your fonts locally Missing Authorization

CVSS: 5.3v3.1MediumDeferred
Published 20-01-2026Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2025-14351 is a medium (CVSS 5.3) Missing Authorization vulnerability in brainstormforce custom fonts – host your fonts locally. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.8% of scored vulnerabilities. Fixed in 2.1.17.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-01-2026
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

Description

The Custom Fonts – Host Your Fonts Locally plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the 'BCF_Google_Fonts_Compatibility' class constructor function in all versions up to, and including, 2.1.16. This makes it possible for unauthenticated attackers to delete font directory and rewrite theme.json file.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

+0.01 pp

From 0.26% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Brainstormforce1 product
Wordpress1 product
  • custom-fonts≤ 2.1.16 (fixed in 2.1.17)

2 vendors · 2 products

References

4 links