CVE-2026-91107

CriticalCVSS 9.3/10Last modified Oct 6, 2026

Description

openSIS Classic 9.3 allows an authenticated user with the built-in teacher role can select an arbitrary staff record through staff_id and cause the School Information update path to reset that selected account's password.

Metrics

CVSS 4.0 9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-639

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
OS4ED	openSIS-Classic	9.3

References

Timeline

Published: Oct 5, 2026
Last modified: Oct 6, 2026
NVD status: Awaiting Analysis

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