How severe is CVE-2025-48373?

CVE-2025-48373 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-48373 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-48373?

CVE-2025-48373 affects Schule111 Schule School Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-48373?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-48373 have an EU (EUVD) identifier?

Yes. CVE-2025-48373 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28212.

When was CVE-2025-48373 published?

CVE-2025-48373 was published on 2025-05-22 and last updated on 2026-06-17.

CVE-2025-48373

CVE-2025-48373 is a critical-severity vulnerability in Schule111 Schule School Management System with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v4: 6.6
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28212
Weakness: CWE-863
Affected product: Schule111 Schule School Management System
Published: 2025-05-22
Last modified: 2026-06-17

Description

Schule is open-source school management system software. The application relies on client-side JavaScript (index.js) to redirect users to different panels based on their role. Prior to version 1.0.1, this implementation poses a serious security risk because it assumes that the value of data.role is trustworthy on the client side. Attackers can manipulate JavaScript in the browser (e.g., via browser dev tools or intercepting API responses) and set data.role to any arbitrary value (e.g., "admin"), gaining unauthorized access to restricted areas of the application.

Frequently asked questions

What is CVE-2025-48373?: Schule is open-source school management system software. The application relies on client-side JavaScript (index.js) to redirect users to different panels based on their role. Prior to version 1.0.1, this implementation poses a serious security risk because it assumes that the value of data.role is trustworthy on the client side. Attackers can manipulate JavaScript in the browser (e.g., via browser dev tools or intercepting API responses) and set data.role to any arbitrary value (e.g., "admin"), gaining unauthorized access to restricted areas of the application.
How severe is CVE-2025-48373?: CVE-2025-48373 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-48373 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-48373?: CVE-2025-48373 affects Schule111 Schule School Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-48373?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-48373 have an EU (EUVD) identifier?: Yes. CVE-2025-48373 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28212.
When was CVE-2025-48373 published?: CVE-2025-48373 was published on 2025-05-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:schule111:schule_school_management_system:1.0.0:*:*:*:*:*:*:*

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