How severe is CVE-2023-38884?

CVE-2023-38884 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-38884 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38884?

CVE-2023-38884 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38884?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-38884 published?

CVE-2023-38884 was published on 2023-11-20 and last updated on 2026-06-17.

CVE-2023-38884

CVE-2023-38884 is a high-severity vulnerability in Os4ed Opensis with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
Affected product: Os4ed Opensis
Published: 2023-11-20
Last modified: 2026-06-17

Description

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>'

Frequently asked questions

What is CVE-2023-38884?: 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>'
How severe is CVE-2023-38884?: CVE-2023-38884 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-38884 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38884?: CVE-2023-38884 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38884?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-38884 published?: CVE-2023-38884 was published on 2023-11-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:os4ed:opensis:9.0:*:*:*:community:*:*:*

More vulnerabilities in Os4ed Opensis

CVE-2021-41691 — Critical (CVSS 9.8): A SQL injection vulnerability exists in OS4Ed Open Source Information System Community v8.0 via the "student_id" and…
CVE-2025-22930 — Critical (CVSS 9.8): OS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the groupid parameter at…
CVE-2025-22929 — Critical (CVSS 9.8): OS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the filter_id parameter at…
CVE-2025-22926 — Critical (CVSS 9.8): An issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory traversal by sending a crafted POST…
CVE-2025-22928 — Critical (CVSS 9.8): OS4ED openSIS v7.0 to v9.1 was discovered to contain a SQL injection vulnerability via the cp_id parameter at…
CVE-2024-51211 — Critical (CVSS 9.8): SQL injection vulnerability exists in OS4ED openSIS-Classic Version 9.1, specifically in the resetuserinfo.php file.…

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