CVE-2025-22926

9.8 criticalEPSS 0.9%

Critical (9.8) in os4ed opensis. EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2025-04-03
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

os4ed:opensis

References

https://github.com/OS4ED/openSIS-Classic
https://github.com/esusalla/vulnerability-research/tree/main/CVE-2025-22926

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