CVE-2025-54731Network attack vector

Unauthenticated object injection via untrusted deserialization

Published Aug 28, 2025 · Updated Apr 28, 2026

PHP object injection in eMarket Design YouTube Showcase 3.5.1 and earlier allows remote attackers to inject objects via untrusted input. The plugin deserializes attacker-controlled data, but published records do not identify the affected parameter, endpoint, or function. Exploitation requires no authentication and a suitable POP chain from another installed plugin or theme; none exists in YouTube Showcase itself, while a present chain enables file deletion, sensitive-data retrieval, or code execution.

CVSS severity8.1
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in eMarket Design YouTube Showcase 3.5.1 and earlier allows remote attackers to inject objects via untrusted input. The plugin deserializes attacker-controlled data, but published records do not identify the affected parameter, endpoint, or function. Exploitation requires no authentication and a suitable POP chain from another installed plugin or theme; none exists in YouTube Showcase itself, while a present chain enables file deletion, sensitive-data retrieval, or code execution.

The record

CVE
CVE-2025-54731
Published
Aug 28, 2025
Updated
Apr 28, 2026
Vendor
eMarket Design LLC
Product
YouTube Showcase
Classifications
CWE-94, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=3.5.1 changes=[{"at":"3.5.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

eMarket Design LLC · YouTube Showcaseversion=0 <=3.5.1 changes=[{"at":"3.5.2","status":"unaffected"}]

Published CVSS scores

8.1PatchstackCVSS:3.1/AV:N/AC:H/PR:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-586Object Injection
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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