CVE-2018-1999019

What it is

Chamilo LMS version 11.x contains an Unserialization vulnerability in the "hash" GET parameter for the api endpoint located at /webservices/api/v2.php that can result in Unauthenticated remote code execution. This attack appear to be exploitable via a simple GET request to the api endpoint. This vulnerability appears to have been fixed in After commit 0de84700648f098c1fbf6b807dee28ec640efe62.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

3.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-07-23 15:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:48 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.2% in the next 30 days (EPSS).
• Severity: 9.8 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-07-23 15:29 UTC

Last modified

2026-06-17 01:48 UTC

Exploit probability

3.2% · EPSS, next 30 days

Weakness

CWE-94 · Code injection

Record status

Modified

Affected

• Chamilo Lms 1.11.0
• Chamilo Lms 1.11.2
• Chamilo Lms 1.11.4
• Chamilo Lms 1.11.6
• Chamilo Lms 1.11.8

Attack profile CVSS 3.1 · 9.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2018-1999019.md and follow it. Check whether this project is affected by CVE-2018-1999019. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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