CVE-2026-3813Public exploitNetwork attack vector

Authenticated command execution via unfiltered ScriptEngine evaluation

Published Mar 9, 2026 · Updated Mar 9, 2026

Code injection in JFlow at commit 5badc00db382d7cb82dad231e6a866b18e0addfe allows remote authenticated users to execute operating-system commands. WF_CCForm.Calculate passes a database-backed Sys_MapExt.Tag automatic-calculation value to Java ScriptEngine evaluation without filtering it. Form-design privileges and a valid session token are required to seed the Tag value and reach dtlImp_Save; successful exploitation runs commands as the JFlow process account.

CVSS severity5.3
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in JFlow at commit 5badc00db382d7cb82dad231e6a866b18e0addfe allows remote authenticated users to execute operating-system commands. WF_CCForm.Calculate passes a database-backed Sys_MapExt.Tag automatic-calculation value to Java ScriptEngine evaluation without filtering it. Form-design privileges and a valid session token are required to seed the Tag value and reach dtlImp_Save; successful exploitation runs commands as the JFlow process account.

The record

CVE
CVE-2026-3813
Published
Mar 9, 2026
Updated
Mar 9, 2026
Vendor
Zhejiang Zoneland Zongheng Network Technology Co., Ltd.
Product
JFlow
Classifications
CWE-707, CWE-77, CWE-74, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 9, 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=5badc00db382d7cb82dad231e6a866b18e0addfe

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Zhejiang Zoneland Zongheng Network Technology Co., Ltd. · JFlowversion=5badc00db382d7cb82dad231e6a866b18e0addfe

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
9.8NIST NVDCVSS: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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-707Improper Neutralization
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.007JavaScript/JScript

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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