CVE-2023-38880

Name: CVE-2023-38880
Creator: NVD / NIST
Published: 2023-11-20T19:15:08.6+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.96%

Last modified Jun 17, 2026

CVE-2023-38880 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Community Edition version 9.0 of OS4ED's openSIS Classic has a broken access control vulnerability in the database backup functionality. Whenever an admin generates a database backup, the backup is stored in the web root while the file name has a format of "opensisBackup<date>.sql" (e.g. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

The Community Edition version 9.0 of OS4ED's openSIS Classic has a broken access control vulnerability in the database backup functionality. Whenever an admin generates a database backup, the backup is stored in the web root while the file name has a format of "opensisBackup<date>.sql" (e.g. "opensisBackup07-20-2023.sql"), i.e. can easily be guessed. This file can be accessed by any unauthenticated actor and contains a dump of the whole database including password hashes.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.96%

57.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Os4ed	Opensis	9.0

References

https://github.com/OS4ED/openSIS-ClassicProduct
https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38880Third Party Advisory
https://www.os4ed.com/Product
https://github.com/OS4ED/openSIS-ClassicProduct
https://github.com/dub-flow/vulnerability-research/tree/main/CVE-2023-38880Third Party Advisory
https://www.os4ed.com/Product

Timeline

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

Frequently Asked Questions

What is CVE-2023-38880?

How severe is CVE-2023-38880?

CVE-2023-38880 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.

How do I fix CVE-2023-38880?

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-2023-38880?

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

Scan your code now

Source: NVD / NIST