CVE-2025-14351Public exploitNetwork attack vector

Unauthenticated font deletion via unchecked constructor

Published Jan 20, 2026 · Updated Jan 20, 2026

Missing authorization in Brainstorm Force Custom Fonts 2.1.16 and earlier allows remote attackers to delete locally hosted font data. The BCF_Google_Fonts_Compatibility constructor treats a page parameter as authorization and performs destructive filesystem operations without a capability or nonce check. A single unauthenticated HTTP request with page=bsf-custom-fonts triggers the path; it also rewrites theme.json and can disrupt site appearance.

CVSS severity5.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Brainstorm Force Custom Fonts 2.1.16 and earlier allows remote attackers to delete locally hosted font data. The BCF_Google_Fonts_Compatibility constructor treats a page parameter as authorization and performs destructive filesystem operations without a capability or nonce check. A single unauthenticated HTTP request with page=bsf-custom-fonts triggers the path; it also rewrites theme.json and can disrupt site appearance.

The record

CVE
CVE-2025-14351
Published
Jan 20, 2026
Updated
Jan 20, 2026
Vendor
Presto Made, Inc.
Product
Custom Fonts
Classifications
CWE-862, T1485
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=2.1.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Presto Made, Inc. · Custom Fontsversion=* <=2.1.16

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1485Data Destruction

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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