CVE-2023-38884

Name: CVE-2023-38884
Creator: NVD / NIST
Published: 2023-11-20T19:15:08.773+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2023-38884 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An Insecure Direct Object Reference (IDOR) vulnerability in the Community Edition version 9.0 of openSIS Classic allows an unauthenticated remote attacker to access any student's files by visiting '/assets/studentfiles/<studentId>-<filename>'. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

Description

An Insecure Direct Object Reference (IDOR) vulnerability in the Community Edition version 9.0 of openSIS Classic allows an unauthenticated remote attacker to access any student's files by visiting '/assets/studentfiles/<studentId>-<filename>'

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.88%

54.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Os4ed	Opensis	9.0

References

https://github.com/OS4ED/openSIS-ClassicRelease Notes
https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38884Vendor Advisory
https://www.os4ed.com/Product
https://github.com/OS4ED/openSIS-ClassicRelease Notes
https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38884Vendor Advisory
https://www.os4ed.com/Product

Timeline

Published: Nov 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-38884?

How severe is CVE-2023-38884?

CVE-2023-38884 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2023-38884?

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-2023-38884?

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

Scan your code now

Source: NVD / NIST