CVE-2021-33371

Name: CVE-2021-33371
Creator: NVD / NIST
Published: 2022-07-28T00:15:08.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2021-33371 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.49%

38.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Kabir-M-Alhasan	Student Management System	1.0

References

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

Timeline

Published: Jul 28, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33371?

How severe is CVE-2021-33371?

CVE-2021-33371 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33371?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33371?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST