CVE-2016-15004Public exploitNetwork attack vector

Unauthenticated code execution via unsafe deserialization

Published Jul 23, 2022 · Updated Apr 14, 2025

PHP object injection in Revmakx InfiniteWP Client 1.5.1.3 and 1.6.0 allows remote attackers to execute PHP code via crafted POST data. The iwp_mmb_parse_request() function base64-decodes the raw HTTP request body and passes the result to PHP unserialize() before filtering its parameters. No authentication or user interaction is required; a usable object chain permits arbitrary PHP code execution in the WordPress site context.

CVSS severity9.8
Critical
EPSS probability1.75%
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 Revmakx InfiniteWP Client 1.5.1.3 and 1.6.0 allows remote attackers to execute PHP code via crafted POST data. The iwp_mmb_parse_request() function base64-decodes the raw HTTP request body and passes the result to PHP unserialize() before filtering its parameters. No authentication or user interaction is required; a usable object chain permits arbitrary PHP code execution in the WordPress site context.

The record

CVE
CVE-2016-15004
Published
Jul 23, 2022
Updated
Apr 14, 2025
Vendor
Revmakx
Product
InfiniteWP Client
Classifications
CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record 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=1.5.1.3
  2. Affected versionversion=1.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Revmakx · InfiniteWP Clientversion=1.5.1.3; version=1.6.0

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8NVDCVSS:3.1/AV:N/AC:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1190Exploit Public-Facing Application

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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