CVE-2026-9528: itsourcecode Electronic Judging System SQL injection in delete_judge.php

CVE-2026-9528 · Severity: high · CVSS 7.3 · Published 2026-05-26

A vulnerability exists in the itsourcecode Electronic Judging System, a platform used for managing and scoring competitions. An attacker can exploit this flaw to gain unauthorized access to the underlying database, potentially leading to the theft of sensitive information or the disruption of the judging process. This issue can be exploited remotely without requiring any user login or special permissions.

Technologies: Itsourcecode Electronic Judging System. Vendors: Itsourcecode.

Quick answers

Is CVE-2026-9528 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-9528 being exploited in the wild.
How severe is CVE-2026-9528?
High severity, with a CVSS score of 7.3, published 26 May 2026.
Which products and versions are affected?
Itsourcecode Electronic Judging System 1.0.
Is there a fix for CVE-2026-9528?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-9528 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-9528?
Check whether you run Itsourcecode Electronic Judging System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A SQL injection vulnerability exists in itsourcecode Electronic Judging System 1.0 within the '/admin/delete_judge.php' component. The root cause is the improper neutralization of the 'judge_id' parameter before its use in a SQL query. A remote, unauthenticated attacker can exploit this by sending a specially crafted HTTP request containing malicious SQL commands. Successful exploitation allows for unauthorized database access, data exfiltration, and potential modification or deletion of records. A public proof-of-concept (PoC) using a time-based sleep payload has been disclosed. No official patch is currently documented, but remediation should involve implementing prepared statements and parameterized queries.

Affected products

  • itsourcecode Electronic Judging System 1.0

Timeline

  • 2026-04-28: disclosed: Vulnerability details and PoC shared on GitHub
  • 2026-05-26: advisory: NVD and VulDB published advisory details

References

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