CVE-2023-3599Network attack vector

Privilege escalation via unchecked user creation

Published Jul 10, 2023 · Updated Aug 2, 2024

Improper access control in SourceCodester Best Fee Management System 1.0 allows remote authenticated users to create administrator accounts. The save_user function in admin_class.php inserts posted user fields into the users table without checking the caller's administrative role or restricting the submitted account type. A low-privileged account with access to the Add User handler can gain administrative access to application data and functions.

CVSS severity6.3
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in SourceCodester Best Fee Management System 1.0 allows remote authenticated users to create administrator accounts. The save_user function in admin_class.php inserts posted user fields into the users table without checking the caller's administrative role or restricting the submitted account type. A low-privileged account with access to the Add User handler can gain administrative access to application data and functions.

The record

CVE
CVE-2023-3599
Published
Jul 10, 2023
Updated
Aug 2, 2024
Vendor
SourceCodester
Product
Best Fee Management System
Classifications
CWE-264, T1136
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SourceCodester · Best Fee Management Systemversion=1.0

Published CVSS scores

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
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 exploitUnconfirmed

Weakness, pattern, technique

CWE-264Permissions, Privileges, and Access Controls
T1136Create Account

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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