CVE-2023-38880

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

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
NVD status: Modified

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