CVE-2026-12923Network attack vector

Subscriber-level PHP function invocation via unchecked path

Published Jul 1, 2026 · Updated Jul 1, 2026

Arbitrary function invocation in eMarket Design YouTube Showcase 4.0.3 and earlier allows remote authenticated users to invoke PHP functions. The emd_delete_file() AJAX handler sanitizes the path value as text, strips its _PLUGIN_DIR suffix, and invokes the result as a function name without an allowlist or capability check. Subscriber access and a front-end file-field form that exposes the nonce are required; callable zero-argument functions can disclose runtime data or cause environment-dependent effects.

CVSS severity7.8
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary function invocation in eMarket Design YouTube Showcase 4.0.3 and earlier allows remote authenticated users to invoke PHP functions. The emd_delete_file() AJAX handler sanitizes the path value as text, strips its _PLUGIN_DIR suffix, and invokes the result as a function name without an allowlist or capability check. Subscriber access and a front-end file-field form that exposes the nonce are required; callable zero-argument functions can disclose runtime data or cause environment-dependent effects.

The record

CVE
CVE-2026-12923
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
eMarket Design LLC
Product
YouTube Showcase
Classifications
CWE-98, T1190
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 <=4.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

eMarket Design LLC · YouTube Showcaseversion=0 <=4.0.3

Published CVSS scores

7.8WordfenceCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
T1190Exploit Public-Facing Application

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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