CVE-2025-48373: Schule is open-source school management system software

This month

CRITICAL 9.1REMOTEDOWNGRADE

CVE-2025-48373 is a critical-severity flaw (CVSS 9.1) affecting schule school management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-863
Published	2025-05-22
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: schule111

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-22 21:15 UTCPublished CVE record published
2026-06-17 09:29 UTCUpdated Record last modified

schule111 schule school management system DOWNGRADE

Affected: 1.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy schule-school-management-system || rpm -q schule-school-management-system || schule-school-management-system --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison schule-school-management-system sudo apt install schule-school-management-system=<VERSION_BEFORE_1.0.0> sudo apt-mark hold schule-school-management-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list schule-school-management-system sudo dnf downgrade schule-school-management-system-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add schule-school-management-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-48373?

schule school management system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-48373 being exploited?

CVE-2025-48373 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-48373 affect?

CVE-2025-48373 affects schule school management system. Severity is critical (CVSS 9.1). 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 secu

How urgent is CVE-2025-48373?

Priority 45/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-48375 MEDIUM 5.3 DOWNGRADE Schule is open-source school management system software
CVE-2025-48372 HIGH 7.3 DOWNGRADE Schule is open-source school management system software

References

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