What is the CVSS score of CVE-2024-47886?

CVE-2024-47886 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2024-47886?

Yes, a public proof-of-concept exploit is available for CVE-2024-47886. Prioritise patching immediately. EPSS: 0.9%.

How to fix or mitigate CVE-2024-47886?

Within 24 hours: Audit all Chamilo instances to identify affected versions and document user access patterns. Within 7 days: Implement network segmentation to restrict Chamilo access, disable unnecessary features, and apply WAF rules blocking serialized object exploitation. Within 30 days: Upgrade to patched Chamilo version (1.11.27 or later) or migrate to alternative LMS solution; establish vulnerability monitoring for vendor updates.

Chamilo CVE-2024-47886

HIGH

Deserialization of Untrusted Data (CWE-502)

2026-03-02 security-advisories@github.com

RCE Deserialization Chamilo Lms Chamilo

7.2

CVSS 3.1 · GitHub Advisory

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Vulnerability Assessment

Weakness	CWE CWE-502 OWASP Top 10:2025 A08:2025 - Software or Data Integrity Failures ASVS 5.0 V1 - Encoding and Sanitization Safe deserialization, type allowlists MITRE ATT&CK 2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 7.2 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: High. User interaction: None. Exploitation requires authentication. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker (requires authentication) could exploit this flaw, a remote code execution (RCE) within versions 1.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.9% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

RemediationAI

Fixed in version 1.11.26.. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-502 (Deserialization of Untrusted Data). Affects Chamilo Lms. Chamilo is a learning management system. Chamillo is affected by a post-authentication phar unserialize which leads to a remote code execution (RCE) within versions 1.11.12 to 1.11.26. By abusing multiple supported features from the virtualization plugin vchamilo, the vulnerability allows an administrator to execute arbitrary code on the server. This issue has been patched in version 1.11.26.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 7.2 HIGH

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Mar 03, 2026 - 19:11 vuln.today

Public exploit code

CVE Published

Mar 02, 2026 - 15:16 nvd

HIGH 7.2

DescriptionGitHub Advisory

Chamilo is a learning management system. Chamillo is affected by a post-authentication phar unserialize which leads to a remote code execution (RCE) within versions 1.11.12 to 1.11.26. By abusing multiple supported features from the virtualization plugin vchamilo, the vulnerability allows an administrator to execute arbitrary code on the server. This issue has been patched in version 1.11.26.

Executive ViewAI

Why It Matters

Chamilo LMS instances running versions 1.11.12 through 1.11.26 are vulnerable to remote code execution through a post-authentication exploit with no available patch. Organizations using affected Chamilo versions face immediate risk of system compromise and data breach, particularly concerning given the public availability of exploit code.

Business Impact: High

Compensating Controls

Restrict Chamilo administrative and instructor access through network segmentation and VPN; implement WAF rules to detect and block phar:// protocol usage and serialized object patterns; disable file upload and integration features where possible; enforce strong authentication and session monitoring; maintain audit logs of privileged user activities; consider temporary restriction of remote access until patch is available.

Threat Intelligence Overview

EPSS Score

0.9%

Top 25% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.9%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +36

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Insecure Deserialization CRITICAL

Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.