CVE-2023-30016Public exploitNetwork attack vector

Database disclosure via injectable sub-event identifier

Published Jan 12, 2024 · Updated Jun 20, 2025

SQL injection in oretnom23 Judging Management System 1.0 allows remote attackers to obtain sensitive data via a crafted sub_event_id value. The PHP endpoint accepts sub_event_id in a GET request and lets injected SQL reach MySQL, as demonstrated by an UPDATEXML error payload that extracts the database name. The vulnerable route is network-reachable without user interaction; successful exploitation reads sensitive data and can execute arbitrary code.

CVSS severity9.8
Critical
EPSS probability1.02%
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 oretnom23 Judging Management System 1.0 allows remote attackers to obtain sensitive data via a crafted sub_event_id value. The PHP endpoint accepts sub_event_id in a GET request and lets injected SQL reach MySQL, as demonstrated by an UPDATEXML error payload that extracts the database name. The vulnerable route is network-reachable without user interaction; successful exploitation reads sensitive data and can execute arbitrary code.

The record

CVE
CVE-2023-30016
Published
Jan 12, 2024
Updated
Jun 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 2025Record 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

9.8CISA-ADPCVSS: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

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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