CVE-2026-6847Network attack vector

Unauthenticated code execution via PHP file upload

Published Jul 13, 2026 · Updated Jul 13, 2026

Missing authentication in 4 REAL Themis NETPanel before April 2026 allows remote attackers to execute code through a file-upload endpoint. The endpoint accepts a base64-encoded payload and writes an attacker-supplied PHP file without requiring an authenticated session. Network access to the endpoint is sufficient to run the uploaded PHP code with the web application's server privileges, enabling control of hosted data and service operation.

CVSS severity9.3
Critical
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in 4 REAL Themis NETPanel before April 2026 allows remote attackers to execute code through a file-upload endpoint. The endpoint accepts a base64-encoded payload and writes an attacker-supplied PHP file without requiring an authenticated session. Network access to the endpoint is sufficient to run the uploaded PHP code with the web application's server privileges, enabling control of hosted data and service operation.

The record

CVE
CVE-2026-6847
Published
Jul 13, 2026
Updated
Jul 13, 2026
Vendor
4 REAL
Product
Themis NETPanel
Classifications
CWE-306, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 13, 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 <04.2026

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

4 REAL · Themis NETPanelversion=0 <04.2026

Published CVSS scores

9.3CERT.PLCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

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-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application
T1505.003Server Software Component: Web Shell

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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