How severe is CVE-2025-65594?

CVE-2025-65594 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-65594 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65594?

CVE-2025-65594 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65594?

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.

Does CVE-2025-65594 have an EU (EUVD) identifier?

Yes. CVE-2025-65594 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202199.

When was CVE-2025-65594 published?

CVE-2025-65594 was published on 2025-12-09 and last updated on 2026-07-05.

CVE-2025-65594

CVE-2025-65594 is a high-severity vulnerability in Os4ed Opensis with a CVSS 3.x base score of 8.1. 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-284.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202199
Weakness: CWE-284
Affected product: Os4ed Opensis
Published: 2025-12-09
Last modified: 2026-07-05

Description

OpenSIS 9.2 and below is vulnerable to Incorrect Access Control in Student.php, which allows an authenticated low-privilege user to perform unauthorized database write operations relating to the data of other users.

Frequently asked questions

What is CVE-2025-65594?: OpenSIS 9.2 and below is vulnerable to Incorrect Access Control in Student.php, which allows an authenticated low-privilege user to perform unauthorized database write operations relating to the data of other users.
How severe is CVE-2025-65594?: CVE-2025-65594 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-65594 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65594?: CVE-2025-65594 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65594?: 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.
Does CVE-2025-65594 have an EU (EUVD) identifier?: Yes. CVE-2025-65594 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202199.
When was CVE-2025-65594 published?: CVE-2025-65594 was published on 2025-12-09 and last updated on 2026-07-05.

References

https://gitlab.com/tsuretettee/cve-2025-65594

EU advisories (EUVD)

http://opensis.com

Affected products (1)

cpe:2.3:a:os4ed:opensis:*:*:*:*:*:*:*:*

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.…

All CVEs affecting Os4ed Opensis →

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