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Fencer Vulns
high 7.5

CVE-2023-38884 json

An Insecure Direct Object Reference (IDOR) vulnerability in the Community Edition version 9.0 of openSIS Classic allows an unauthenticated…

published 2023-11-20 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-42651

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

An Insecure Direct Object Reference (IDOR) vulnerability in the Community Edition version 9.0 of openSIS Classic allows an unauthenticated remote attacker to access any student's files by visiting '/assets/studentfiles/<studentId>-<filename>'

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Classification

Weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.