CVE-2024-3366Public exploit

Authenticated code execution via unrestricted FreeMarker class resolution

Published Apr 6, 2024 · Updated Aug 21, 2024

Template injection in xuxueli XXL-JOB before 2.4.1 allows remote authenticated users to execute code through a crafted FreeMarker template. The admin service renders classpath templates with FreeMarker's unrestricted class resolver, allowing ObjectConstructor expressions to instantiate classes and invoke runtime execution. Valid credentials and the ability to modify a rendered template are required; successful exploitation runs code in the admin service context.

CVSS severity3.5
Low
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Template injection in xuxueli XXL-JOB before 2.4.1 allows remote authenticated users to execute code through a crafted FreeMarker template. The admin service renders classpath templates with FreeMarker's unrestricted class resolver, allowing ObjectConstructor expressions to instantiate classes and invoke runtime execution. Valid credentials and the ability to modify a rendered template are required; successful exploitation runs code in the admin service context.

The record

CVE
CVE-2024-3366
Published
Apr 6, 2024
Updated
Aug 21, 2024
Vendor
Xuxueli
Product
XXL-JOB
Classifications
CWE-502, CWE-74, T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 2024Record 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=2.4.0
  2. Affected versionversion=2.4.1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Xuxueli · XXL-JOBversion=2.4.0; version=2.4.1

Published CVSS scores

3.5VulDB CNACVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
2.7VulDB CNAAV:A/AC:L/Au:S/C:N/I:P/A:N
3.5VulDB CNACVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/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.

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

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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