Directory Traversal Vulnerability in openSIS Messaging Module by OS4ED
CVE-2025-22927

9.1CRITICAL

Key Information:

Vendor

OS4ED

Status
openSIS
Vendor
CVE Published:
3 April 2025

What is CVE-2025-22927?

A directory traversal vulnerability exists in the messaging module of OS4ED's openSIS versions 8.0 through 9.1. This weakness allows attackers to manipulate input parameters in a crafted POST request targeting the Modules.php file, specifically via the inbox messaging function. By exploiting this flaw, adversaries can traverse directories and potentially gain unauthorized access to sensitive files on the server. Users of openSIS are advised to implement necessary patches and review their security configurations to mitigate the risk associated with this vulnerability.

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References

https://github.com/OS4ED/openSIS-Classic
https://github.com/esusalla/vulnerability-research/tree/m...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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