CVE-2026-0733
Published: 09 January 2026
Summary
CVE-2026-0733 is a medium-severity Injection (CWE-74) vulnerability in Phpgurukul Online Course Registration System. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 27.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-0733 is a SQL injection vulnerability (CWE-74, CWE-89) affecting the PHPGurukul Online Course Registration System in versions up to 3.1. The flaw resides in an unknown function within the file /onlinecourse/admin/manage-students.php, where manipulation of the id/cid arguments enables injection. Published on 2026-01-09, it carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
The vulnerability is remotely exploitable by low-privileged users (PR:L) with low attack complexity and no user interaction required. Successful exploitation allows attackers to achieve limited impacts on confidentiality, integrity, and availability through SQL injection, such as unauthorized data access, modification, or disruption within the affected application's database.
Advisories and further details, including potential mitigations or patches, are documented in references such as VulDB entries (https://vuldb.com/?ctiid.340130 and https://vuldb.com/?id.340130), PHPGurukul's site (https://phpgurukul.com/), and exploit disclosures at https://note-hxlab.wetolink.com/share/Tma34bofeB2L and https://note-hxlab.wetolink.com/share/cU33RBoPPAF0. The exploit has been publicly disclosed and may be utilized.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-1772
Vulnerability details
A vulnerability was determined in PHPGurukul Online Course Registration System up to 3.1. This impacts an unknown function of the file /onlinecourse/admin/manage-students.php. This manipulation of the argument id/cid causes sql injection. It is possible to initiate the attack remotely. The…
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exploit has been publicly disclosed and may be utilized.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
SQL injection in a remotely accessible web application directly enables initial access via exploitation of a public-facing app (T1190).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of id/cid inputs in manage-students.php to block SQL injection payloads before they reach the database.
Mandates prompt remediation of the known SQL injection flaw in the publicly disclosed Online Course Registration System code.
Restricts the low-privileged accounts already able to reach /admin/manage-students.php, limiting the scope of data manipulation possible via successful injection.