CVE-2025-22926 Path traversal in n/a

Critical 9.8 Published Updated

Attackers can read arbitrary files via directory traversal in openSIS messaging module, requiring immediate patching for school administrators.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-22926?

CVE-2025-22926 is a critical path traversal vulnerability in Os4ed Opensis, published on 3 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2025-22926?

It affects 1 product.

Products include Os4ed Opensis.

How do I fix CVE-2025-22926?

No fix has been published for CVE-2025-22926 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-22926 being exploited?

There is no known exploitation of CVE-2025-22926 in the wild and no public exploit code.

All Os4ed Opensis vulnerabilities

Sources

Also known as GHSA-gpcp-cp2q-wj86.

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