Is this vulnerability remotely exploitable?

Yes. The flaw can be exploited remotely by anyone with network access to the vulnerable endpoint, subject to whatever authentication or access controls the deployment enforces.

What level of access does an attacker need to exploit this?

An attacker needs the ability to reach and interact with the /fort/trust/version/common/common.jsp upload functionality. In some setups this may be exposed without strong authentication, while in others it may require valid credentials; the risk increases significantly if the endpoint is reachable from untrusted networks.

What is the safest general fix pattern?

The most reliable fix is to enforce strict server-side validation on uploaded files (type, extension, and content), store them outside of executable or web-accessible paths, and ensure robust access control on upload features. Where possible, centralize upload handling in a hardened component rather than duplicating ad-hoc logic in JSP pages.

Severity:

HIGH RISK

(7.3)

Unrestricted File Upload (CWE-434) in Sangfor Operation and Maintenance Management System /fort/trust/version/common/common.jsp

CVE-2025-15503

Published:

Jan 10, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Unrestricted File Upload

CWE:

CWE-284;CWE-434

Impact:

Remote Code Execution and Server Compromise (depending on server configuration)

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Vulnerability Type

Category:

Unrestricted File Upload

CWE:

CWE-284;CWE-434

Impact:

Remote Code Execution and Server Compromise (depending on server configuration)

Severity:

HIGH RISK

(7.3)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Ask AI for summary of CodeAnt

Unrestricted File Upload (CWE-434) in Sangfor Operation and Maintenance Management System /fort/trust/version/common/common.jsp

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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