CVE-2026-12902Network attack vector

Authenticated media attachment creation via unchecked imports

Published Jul 1, 2026 · Updated Jul 1, 2026

Missing authorization in Kadence Blocks 3.7.7 and earlier allows remote authenticated users to create arbitrary Media Library attachments. The kadence_import_process_pattern and kadence_import_process_data AJAX actions accept contributor-controlled remote image URLs and invoke wp_upload_bits() and wp_insert_attachment() without enforcing the upload_files capability. Contributor-level access is required; the result is a server-side download into the uploads directory and a new attachment record, not reported code execution.

CVSS severity4.3
Medium
EPSS probability0.47%
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 Kadence Blocks 3.7.7 and earlier allows remote authenticated users to create arbitrary Media Library attachments. The kadence_import_process_pattern and kadence_import_process_data AJAX actions accept contributor-controlled remote image URLs and invoke wp_upload_bits() and wp_insert_attachment() without enforcing the upload_files capability. Contributor-level access is required; the result is a server-side download into the uploads directory and a new attachment record, not reported code execution.

The record

CVE
CVE-2026-12902
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
Liquid Web
Product
Kadence Blocks
Classifications
CWE-862, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 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 <=3.7.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Liquid Web · Kadence Blocksversion=0 <=3.7.7

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1105Ingress Tool Transfer

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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