EUVD-2026-19365
GHSA-v9r5-qwpw-xpgf
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/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
Lifecycle Timeline
6DescriptionCVE.org
A flaw has been found in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. This affects an unknown part of the file /admin/Add%20notice/add%20notice.php. This manipulation of the argument $_SERVER['PHP_SELF'] causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been published and may be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Cross-site scripting (XSS) in Cyber-III Student-Management-System allows high-privileged authenticated attackers to inject malicious scripts via the $_SERVER['PHP_SELF'] parameter in the /admin/Add%20notice/add%20notice.php endpoint. The vulnerability requires user interaction (UI:P) to trigger and is confirmed by publicly available exploit code, though real-world risk is mitigated by high privilege requirements (PR:H) and limited technical impact (integrity only). The product uses rolling releases with no versioning, and the vendor has not responded to early disclosure.
Technical ContextAI
The vulnerability stems from improper handling of the PHP superglobal $_SERVER['PHP_SELF'], which contains the current script's path and is controlled partially by user input in certain server configurations. The flaw occurs in a PHP application managing student information within an administrative interface. CWE-79 (Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting) indicates that the application fails to properly sanitize or encode user-influenced input before rendering it in HTML context. The $_SERVER['PHP_SELF'] variable is being output directly without HTML entity encoding or validation, allowing an attacker to inject JavaScript code that executes in the context of an authenticated administrator's session.
RemediationAI
No vendor-released patch identified at time of analysis. The product uses rolling releases and the vendor has not responded to the early disclosure via issue report (GitHub issue #239). Organizations using Student-Management-System should monitor the project's GitHub repository for commits addressing $_SERVER['PHP_SELF'] sanitization and apply updates when available. As a temporary workaround, restrict access to the /admin/Add%20notice/add%20notice.php endpoint using web server rules (Apache/Nginx) and implement strict input validation and HTML entity encoding of $_SERVER['PHP_SELF'] output in the affected file. Enable Content Security Policy (CSP) headers to prevent inline script execution. Reference the disclosure: https://github.com/Cyber-III/Student-Management-System/issues/239
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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