CVE-2025-48372: Schule is open-source school management system software

Routine

HIGH 7.3REMOTEDOWNGRADE

CVE-2025-48372 is a high-severity flaw (CVSS 7.3) 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 generateOTP() function generates a 4-digit numeric One-Time Password (OTP). Prior to version 1.0.1, even if a secure random number generator is used, the short length and limited range (1000–9999) results in only 9000 possible combinations. This small keyspace makes the OTP highly vulnerable to brute-force attacks, especially in the absence of strong rate-limiting or lockout mechanisms.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-521
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-2025-48372?

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

Is CVE-2025-48372 being exploited?

CVE-2025-48372 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-2025-48372 affect?

CVE-2025-48372 affects schule school management system. Severity is high (CVSS 7.3). Schule is open-source school management system software. The generateOTP() function generates a 4-digit numeric One-Time Password (OTP). Prior to version 1.0.1, even if a secure random number generator is used, the short length and limited

How urgent is CVE-2025-48372?

Priority 36/100. High 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-2025-48373 CRITICAL 9.1 DOWNGRADE Schule is open-source school management system software

References

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