CVE-2026-8610Public exploitNetwork attack vector

Subscriber-level settings modification via unchecked admin POST

Published May 20, 2026 · Updated May 20, 2026

Missing authorization in TypeSquare Webfonts for ConoHa 2.0.4 and earlier allows remote authenticated users to alter site-wide font settings. The admin_init handler processes POSTed fontThemeUseType data on any wp-admin page and writes plugin options without a capability check. Subscriber-level access is sufficient; values 1 and 3 also skip nonce verification, exposing those branches to cross-site request forgery.

CVSS severity4.3
Medium
EPSS probability0.29%
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 TypeSquare Webfonts for ConoHa 2.0.4 and earlier allows remote authenticated users to alter site-wide font settings. The admin_init handler processes POSTed fontThemeUseType data on any wp-admin page and writes plugin options without a capability check. Subscriber-level access is sufficient; values 1 and 3 also skip nonce verification, exposing those branches to cross-site request forgery.

The record

CVE
CVE-2026-8610
Published
May 20, 2026
Updated
May 20, 2026
Vendor
GMO Internet Group, Inc.
Product
TypeSquare Webfonts for ConoHa
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2026CVE publishedPublication date reported by the CVE source.
  2. May 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=0 <=2.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GMO Internet Group, Inc. · TypeSquare Webfonts for ConoHaversion=0 <=2.0.4

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

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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