CVE-2021-33371

MEDIUM

Student Management System v1.0 - XSS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-33371. PoCs published by mohsen khashei.

AI-analyzed exploit summary This exploit demonstrates a persistent XSS vulnerability in Student Management System 1.0 via the 'message' parameter in the Live Chat feature. The payload is injected through a POST request to 'nav_bar_action.php' and triggers when viewed by other users.

Description

A stored cross-site scripting (XSS) vulnerability in /nav_bar_action.php of Student Management System v1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Chat box.

Exploits (1)

exploitdb WORKING POC
by mohsen khashei · textwebappsphp
https://www.exploit-db.com/exploits/49865

This exploit demonstrates a persistent XSS vulnerability in Student Management System 1.0 via the 'message' parameter in the Live Chat feature. The payload is injected through a POST request to 'nav_bar_action.php' and triggers when viewed by other users.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Student Management System 1.0
Auth required
Prerequisites: Authenticated access to the Student Management System · Live Chat feature enabled
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/49865

Scores

CVSS v3 5.4
EPSS 0.0049
EPSS Percentile 38.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
kabir-m-alhasan/student_management_system 1.0
Published Jul 28, 2022
Tracked Since Feb 18, 2026