How exploitable is this vulnerability in practice?

Exploitability is significant within the context of an already authenticated administrator account. Once an attacker holds such access, the unsafe PHAR deserialization can often be reliably turned into remote code execution, depending on available gadget classes and environment constraints.

What level of access does an attacker need?

The described issue is post-authentication and requires administrator-level access to Chamilo. An external attacker would first need to compromise or obtain an administrator account before attempting to exploit the unsafe deserialization.

What is the safest general fix pattern?

The most robust fix pattern is to eliminate unsafe deserialization entirely from the affected code paths. Replace PHAR-based object handling and any use of `unserialize()` with data-only formats and parsing routines, and ensure that any remaining serialization mechanisms cannot instantiate arbitrary classes.

Severity:

HIGH RISK

(7.2)

Unsafe PHAR Deserialization (CWE-502) in Chamilo vchamilo Virtualization Plugin

CVE-2024-47886

Published:

Mar 2, 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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CRITICAL RISK

CRITICAL

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SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Remote Code Execution via SQL Injection on the Database Server

March 7, 2026

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Authenticated Remote Code Execution

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Authenticated Remote Code Execution

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

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Ask AI for summary of CodeAnt

Unsafe PHAR Deserialization (CWE-502) in Chamilo vchamilo Virtualization Plugin

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

CRITICAL RISK

CRITICAL

(9.9)

Command Injection in MCP Stdio Configuration Validation (CWE-78) in WeKnora

CRITICAL RISK

CRITICAL

(9.9)

SQL Injection via PostgreSQL Array/Row Expressions (CWE-89) in WeKnora Query Engine

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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