CVE-2026-91107 (GCVE-0-2026-91107)

Vulnerability from cvelistv5 – Published: 2026-10-05 21:29 – Updated: 2026-10-05 21:29
VLAI
Title
openSIS Classic 9.3 - Insecure Direct Object Reference (IDOR)
Summary
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.
Severity
9.3 (Critical)
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
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version CPE status
OS4ED openSIS-Classic Affected: 9.3
    cpe:2.3:a:os4ed:opensis-classic:9.3:*:windows:*:*:*:*:*
    cpe:2.3:a:os4ed:opensis-classic:9.3:*:macos:*:*:*:*:*
    cpe:2.3:a:os4ed:opensis-classic:9.3:*:linux:*:*:*:*:*
Create a notification for this product.
Credits
Daniel Celis
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.