How severe is CVE-2025-22927?

CVE-2025-22927 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-22927 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-22927?

CVE-2025-22927 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-22927?

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

Does CVE-2025-22927 have an EU (EUVD) identifier?

Yes. CVE-2025-22927 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-9613.

When was CVE-2025-22927 published?

CVE-2025-22927 was published on 2025-04-03 and last updated on 2026-06-17.

CVE-2025-22927

CVE-2025-22927 is a critical-severity vulnerability in Os4ed Opensis with a CVSS 3.x base score of 9.1. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-9613
Weakness: CWE-22
Affected product: Os4ed Opensis
Published: 2025-04-03
Last modified: 2026-06-17

Description

An issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory traversal by sending a crafted POST request to /Modules.php?modname=messaging/Inbox.php&modfunc=save&filename.

Frequently asked questions

What is CVE-2025-22927?: An issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory traversal by sending a crafted POST request to /Modules.php?modname=messaging/Inbox.php&modfunc=save&filename.
How severe is CVE-2025-22927?: CVE-2025-22927 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-22927 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-22927?: CVE-2025-22927 affects Os4ed Opensis. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-22927?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-22927 have an EU (EUVD) identifier?: Yes. CVE-2025-22927 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-9613.
When was CVE-2025-22927 published?: CVE-2025-22927 was published on 2025-04-03 and last updated on 2026-06-17.

References

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…
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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…
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