Is this vulnerability remotely exploitable over the network?

Yes, but only through authenticated access. An attacker must be able to send HTTP requests to the `/a/file/upload` endpoint and hold valid credentials with file upload permissions.

Does an attacker need high-privileged access to exploit this?

Not necessarily. Any account granted file upload rights can be sufficient, as long as it can control the `fileEntityId` parameter. Elevated application roles are not strictly required.

What is the safest general fix pattern for developers?

Remove reliance on user-controllable values for filesystem paths, introduce strict canonicalization, and enforce that all resolved paths remain under a predefined upload root. Combine this with non-executable upload directories and server-side controlled filenames.

Severity:

HIGH RISK

(8.8)

Path Traversal in File Upload Handler (CWE-22) in JeeSite /a/file/upload Endpoint

CVE-2026-36762

Published:

Apr 30, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File Write to Unintended Locations

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal

CWE:

CWE-22

Impact:

Arbitrary File Write to Unintended Locations

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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Path Traversal in File Upload Handler (CWE-22) in JeeSite /a/file/upload Endpoint

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

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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