CVE-2026-0803
Published: 09 January 2026
Summary
CVE-2026-0803 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 28.5th 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-2026-0803 is a SQL injection vulnerability in PHPGurukul Online Course Registration System versions up to 3.1. The issue resides in an unknown functionality of the /enroll.php file, where the arguments studentregno, Pincode, session, department, level, course, and sem can be manipulated to inject malicious SQL payloads. Classified under CWE-74 (improper neutralization of special elements) and CWE-89 (SQL injection), 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) and was published on 2026-01-09.
The vulnerability can be exploited remotely by a low-privileged user (PR:L) with network access and no need for user interaction. Successful exploitation allows partial impacts on confidentiality, integrity, and availability, potentially enabling an attacker to extract sensitive data, modify records, or disrupt service through injected SQL queries. A public exploit is available, increasing the risk of widespread abuse.
Advisories referenced in VulDB entries (ctiid.340255, id.340255, submit.733344) and a share from note-hxlab detail the vulnerability, while the vendor site at phpGurukul.com may provide further context or updates. No specific patch information is detailed in the primary disclosure.
The public availability of the exploit underscores the need for immediate scanning and upgrades in affected environments.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-1708
Vulnerability details
A vulnerability was found in PHPGurukul Online Course Registration System up to 3.1. This affects an unknown part of the file /enroll.php. The manipulation of the argument studentregno/Pincode/session/department/level/course/sem results in sql injection. The attack may be launched remotely. The exploit…
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has been made public and could be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct SQL injection in public-facing web app (/enroll.php) enables remote exploitation for initial access and data manipulation.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of untrusted inputs such as studentregno/Pincode/session/department/level/course/sem in enroll.php to block SQL injection payloads.
Mandates timely remediation of the known SQL injection flaw in PHPGurukul Online Course Registration System before public exploits can be used.
Enables monitoring of application inputs and database queries to identify anomalous SQL statements originating from the vulnerable enroll.php parameters.