CVE-2025-52136Public exploitNetwork attack vector

Administrator code execution via unrestricted plugin upload

Published Aug 10, 2025 · Updated Aug 12, 2025

Improper validation in EMQX before 5.8.6 allows remote authenticated users with administrator access to execute code via a plugin upload. The Dashboard plugin installer accepts and starts an arbitrary uploaded Erlang plugin without a prior host-side allow command. Administrator Dashboard access is required, and EMQ disputes the vulnerability because plugin installation is intended behavior.

CVSS severity3.0
Low
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper validation in EMQX before 5.8.6 allows remote authenticated users with administrator access to execute code via a plugin upload. The Dashboard plugin installer accepts and starts an arbitrary uploaded Erlang plugin without a prior host-side allow command. Administrator Dashboard access is required, and EMQ disputes the vulnerability because plugin installation is intended behavior.

The record

CVE
CVE-2025-52136
Published
Aug 10, 2025
Updated
Aug 12, 2025
Vendor
EMQ
Product
EMQX
Classifications
CWE-754, T1505
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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=0 <5.8.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

EMQ · EMQXversion=0 <5.8.6

Published CVSS scores

3.0MITRECVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
T1505Server Software Component

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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