Critical
openSIS Classic 9.3 - Insecure Direct Object Reference (IDOR)
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.
Announced Source revision 1
Original source ↗CVE-2026-91107
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-91107
openSIS-Classic
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "OS4ED",
"product": "openSIS-Classic",
"versions": [
{
"status": "affected",
"version": "9.3"
}
],
"platforms": [
"Windows",
"MacOS",
"Linux"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-91107
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #9297 · Revision 1
- Added to Heist Feed
- Publisher date