Is this vulnerability remotely exploitable over the network?

Yes. An attacker who can authenticate to pyLoad with sufficient permissions (SETTINGS and ADD) can exploit the vulnerability purely over HTTP, without local filesystem access.

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

The attacker needs an account with SETTINGS and ADD permissions but does not need full administrative rights. Anonymous users without these permissions cannot directly exploit this specific configuration-based issue.

What is the safest general fix pattern for this type of problem?

The safest pattern is to lock down security-sensitive configuration options to administrators only, and to ensure that user-controlled settings can never direct data into directories used by deserialization-based mechanisms like session stores. Where possible, replace unsafe serialization formats with safer, non-executable data formats (e.g., JSON with strict schema validation).

Severity:

HIGH RISK

(7.5)

Insecure Session Storage Redirection and Unsafe Deserialization (CWE-502) in pyLoad Download Directory Configuration

CVE-2026-35464

Published:

Apr 7, 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

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Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502;CWE-863

Impact:

Remote Code Execution

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502;CWE-863

Impact:

Remote Code Execution

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Insecure Session Storage Redirection and Unsafe Deserialization (CWE-502) in pyLoad Download Directory Configuration

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

(8.8)

PHP Code Injection via File Upload (CWE-94) in Aero CMS Admin Post Creation

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

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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