EUVD-2026-54220
GHSA-xvq3-qxrj-cq9p
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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
Network-accessible endpoint requires low-privilege authentication (PR:L per 4.0 vector); impact is read-only confidentiality on student records with no integrity or availability effect.
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
Lifecycle Timeline
1DescriptionCVE.org
A vulnerability was identified in SourceCodester Online Examination & Learning Management System 1.0. Impacted is an unknown function of the file view_students.php. Such manipulation of the argument class_group leads to authorization bypass. The attack may be launched remotely.
AnalysisAI
Authorization bypass in SourceCodester Online Examination & Learning Management System 1.0 exposes student records to unauthorized authenticated users by failing to validate the class_group parameter in view_students.php. The CVSS 4.0 vector (PR:L) confirms that at least low-privilege authentication is required, limiting the attack surface but still enabling lateral access to student data across class groups the attacker should not be permitted to view. No public exploit code has been identified and the product is not listed in the CISA KEV catalog at time of analysis.
Technical ContextAI
The affected file view_students.php is a PHP server-side script within the SourceCodester Online Examination & Learning Management System 1.0 - a PHP-based open-source LMS distributed through SourceCodester (https://www.sourcecodester.com/). The root cause is CWE-285 (Improper Authorization): the application accepts a class_group parameter from user-controlled HTTP input and uses it to fetch student data without properly verifying that the authenticated requestor holds sufficient privileges to access the specified class group. This is consistent with an Insecure Direct Object Reference (IDOR) pattern, where object identifiers are accepted and resolved server-side without adequate authorization enforcement. No CPE strings were provided in the available intelligence, and the affected version is confirmed as 1.0 only.
RemediationAI
No vendor-released patch has been identified at time of analysis - patch availability is not confirmed by any reference in the available data. As a primary compensating control, administrators should implement server-side authorization logic in view_students.php to verify that the authenticated session's user role and assigned class groups match the class_group parameter value before returning any student records; this directly addresses the CWE-285 root cause. Secondarily, restrict access to view_students.php at the web server or application layer to only roles that legitimately require cross-class student visibility (e.g., administrators), blocking lower-privilege users from invoking the endpoint entirely - trade-off is reduced functionality for those roles. Network-level controls that limit access to the application to trusted IP ranges will reduce exposure if the application is not required to be publicly internet-facing. Monitor VulDB (https://vuldb.com/vuln/386535) and SourceCodester (https://www.sourcecodester.com/) for a patched release.
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Same weakness CWE-285 – Improper Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today