CVE-2023-6464Public exploitNetwork attack vector

Authenticated SQL injection via unfiltered user parameter

Published Dec 2, 2023 · Updated Aug 2, 2024

SQL injection in SourceCodester User Registration and Login System 1.0 allows remote authenticated users to manipulate its database. The record attributes the flaw to /endpoint/add-user.php and the user argument, while its linked proof of concept targets /endpoint/delete-user.php, where user is interpolated into a DELETE query despite statement preparation. The CNA assessment requires low privileges; the demonstrated time-delay payload confirms SQL execution, but published evidence bounds the demonstrated impact to a timing oracle.

CVSS severity9.8
Critical
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in SourceCodester User Registration and Login System 1.0 allows remote authenticated users to manipulate its database. The record attributes the flaw to /endpoint/add-user.php and the user argument, while its linked proof of concept targets /endpoint/delete-user.php, where user is interpolated into a DELETE query despite statement preparation. The CNA assessment requires low privileges; the demonstrated time-delay payload confirms SQL execution, but published evidence bounds the demonstrated impact to a timing oracle.

The record

CVE
CVE-2023-6464
Published
Dec 2, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 2, 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 privilegesauthenticated

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
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P

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-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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