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Electronic Judging System CVE-2026-9526

| EUVD-2026-31786 MEDIUM
SQL Injection (CWE-89)
2026-05-26 VulDB GHSA-2j8w-6h96-9r36
5.5
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Jun 08, 2026 - 11:29 vuln.today
Severity Changed
May 26, 2026 - 20:07 NVD
HIGH MEDIUM
CVSS changed
May 26, 2026 - 20:07 NVD
7.3 (HIGH) 5.5 (MEDIUM)

DescriptionCVE.org

A vulnerability was found in itsourcecode Electronic Judging System 1.0. This vulnerability affects unknown code of the file /admin/edit_team.php. The manipulation of the argument num_id results in sql injection. The attack may be launched remotely. The exploit has been made public and could be used.

AnalysisAI

SQL injection in itsourcecode Electronic Judging System 1.0 allows remote unauthenticated attackers to manipulate the num_id parameter in /admin/edit_team.php, enabling unauthorized database read, write, and partial availability impact. The CVSS 4.0 vector confirms no authentication or user interaction is required (PR:N/UI:N), and publicly available exploit code exists on GitHub - though EPSS remains very low at 0.03% (9th percentile), suggesting limited real-world exploitation interest consistent with a niche, low-adoption PHP application. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Discover internet-exposed admin panel
Delivery
Send crafted HTTP request to /admin/edit_team.php
Exploit
Inject SQL payload via num_id parameter
Execution
Query backend database without authentication
Impact
Extract credentials or sensitive competition data

Vulnerability AssessmentAI

Exploitation The vulnerable parameter `num_id` is processed by `/admin/edit_team.php` in the application's admin panel. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.5 (Medium) reflects a network-accessible, low-complexity, unauthenticated attack with partial impact across confidentiality, integrity, and availability - no scope change to downstream systems (SC:N/SI:N/SA:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker identifies an internet-exposed instance of itsourcecode Electronic Judging System 1.0 and sends a crafted HTTP request to `/admin/edit_team.php` with a malicious `num_id` parameter value containing SQL injection payloads - a technique demonstrated in the public GitHub POC. The unsanitized input is interpolated directly into a backend SQL query, allowing the attacker to enumerate database tables, extract stored credentials or competition data, or modify team records. …
Remediation No vendor-released patch has been identified at the time of analysis - absence of a patched version is confirmed by VulDB data, not merely absent from this report. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-9526 vulnerability details – vuln.today

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