CVE-2023-47503Public exploitNetwork attack vector

Remote code execution via login template overwrite

Published Nov 28, 2023 · Updated Aug 2, 2024

Code injection in jflyfox jfinalCMS 5.1.0 allows remote attackers to execute arbitrary commands through the template management module. The module permits files under the web root, including login.jsp, to be overwritten with attacker-supplied JSP code that runs when /admin/ is requested. The exploit requires network reachability to the application; the published CVSS assessment treats the malicious template write as unauthenticated.

CVSS severity9.8
Critical
EPSS probability1.27%
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 jflyfox jfinalCMS 5.1.0 allows remote attackers to execute arbitrary commands through the template management module. The module permits files under the web root, including login.jsp, to be overwritten with attacker-supplied JSP code that runs when /admin/ is requested. The exploit requires network reachability to the application; the published CVSS assessment treats the malicious template write as unauthenticated.

The record

CVE
CVE-2023-47503
Published
Nov 28, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1190Exploit Public-Facing Application
T1505.003Server Software Component: Web Shell

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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