Path Traversal in Os4ed Opensis
CVE-2025-22923
An issue in OS4ED openSIS v8.0 through v9.1 allows attackers to execute a directory traversal and delete files by sending a crafted POST request to /Modules.php?modname=users/Staff.php&removefile.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (57.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/OS4ED/openSIS-Classic (Product)
- github.com/esusalla/vulnerability-research/tree/main/CVE-2025-22923 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-22923?
- CVE-2025-22923 is a high-severity vulnerability in Os4ed Opensis, classified under Path Traversal. CVSS score: 8.8/10. Published 2025-04-02.
- How severe is CVE-2025-22923?
- High severity. CVSS v3 base score is 8.8 out of 10.