CVE-2023-6302Public exploitNetwork attack vector

Authenticated code execution via template file overwrite

Published Nov 27, 2023 · Updated Aug 29, 2024

Code execution in CSZ CMS 1.3.0 File Manager allows remote authenticated users to execute PHP through a crafted template. The File Manager accepts an uploaded main.php and overwrites the generated template's existing main.php, which the front end then interprets as PHP. Administrator access is required to create and select the template; successful exploitation runs attacker-supplied code in the web server context.

CVSS severity4.7
Medium
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

Code execution in CSZ CMS 1.3.0 File Manager allows remote authenticated users to execute PHP through a crafted template. The File Manager accepts an uploaded main.php and overwrites the generated template's existing main.php, which the front end then interprets as PHP. Administrator access is required to create and select the template; successful exploitation runs attacker-supplied code in the web server context.

The record

CVE
CVE-2023-6302
Published
Nov 27, 2023
Updated
Aug 29, 2024
Vendor
CSZ CMS
Product
CSZ CMS
Classifications
CWE-276, CWE-275, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=1.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

CSZ CMS · CSZ CMSversion=1.3.0

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A: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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
CWE-275Permission Issues
T1505.003Web 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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