CVE-2026-12430Network attack vector

Stored XSS via unsanitized product description

Published Jun 19, 2026 · Updated Jun 19, 2026

Stored XSS in Creative Themes Blocksy Companion 2.1.45 and earlier allows remote authenticated users to inject scripts through product_description. Product Reviews saves the admin-supplied product_description post meta without sufficient sanitization and renders it in single-product views without adequate escaping. Editor-level access is required, and exposure is limited to multisite installations or sites where unfiltered_html is disabled; a visitor who opens an affected page runs the stored script.

CVSS severity4.4
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Creative Themes Blocksy Companion 2.1.45 and earlier allows remote authenticated users to inject scripts through product_description. Product Reviews saves the admin-supplied product_description post meta without sufficient sanitization and renders it in single-product views without adequate escaping. Editor-level access is required, and exposure is limited to multisite installations or sites where unfiltered_html is disabled; a visitor who opens an affected page runs the stored script.

The record

CVE
CVE-2026-12430
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
Creative Themes
Product
Blocksy Companion
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 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 <=2.1.45

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Creative Themes · Blocksy Companionversion=0 <=2.1.45

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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