← Vulnerability feed

Vulnerability record · CVE-2023-38880 · published 20 November 2023

CVE-2023-38880: Os4ed opensis vulnerability

Os4ed · Opensis

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.

9.8 CVSS 3.1 Critical EPSS 0.96% · top 40.0%
9.8CVSS 3.1 base score
0.96%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

Track CVE-2023-38880 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-41691Os4ed opensis sql injection vulnerabilityA SQL injection vulnerability exists in OS4Ed Open Source Information System Community v8.0 via the "student_id" and "TRANSFER{SCHOOL]" parameters in…EPSS 1.9%9.8CVE-2025-22926Os4ed opensis path traversal vulnerabilityAn issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory traversal by sending a crafted POST request to /Modules.php?modna…EPSS 0.90%9.8CVE-2025-22929Os4ed opensis sql injection vulnerabilityOS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the filter_id parameter at /students/StudentFilters.php.EPSS 0.52%9.8CVE-2025-22930Os4ed opensis sql injection vulnerabilityOS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the groupid parameter at /messaging/Group.php.EPSS 0.52%9.8CVE-2025-22928Os4ed opensis sql injection vulnerabilityOS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the cp_id parameter at /modules/messages/Inbox.php.EPSS 0.42%9.8CVE-2024-51211Os4ed opensis sql injection vulnerabilitySQL injection vulnerability exists in OS4ED openSIS-Classic Version 9.1, specifically in the resetuserinfo.php file. The vulnerability is due to impr…EPSS 2.3%9.8CVE-2021-41679Os4ed opensis sql injection vulnerabilityA SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue …EPSS 1.3%9.8CVE-2021-41678Os4ed opensis sql injection vulnerabilityA SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue …EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2023-38880), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.