CVE-2026-33618Network attack vector

Authenticated code execution via platform-setting eval

Published Apr 10, 2026 · Updated Apr 10, 2026

Eval injection in Chamilo LMS 2.0.0-alpha.1 through 2.0.0-RC.2 allows remote authenticated users to execute arbitrary PHP code. PlatformConfigurationController::decodeSettingArray() passes a database-backed platform setting to PHP eval() after JSON decoding fails, so injected PHP syntax is interpreted as code. Administrative access is required to plant the setting; any request to the unauthenticated /platform-config/list route triggers execution as the web-server account.

CVSS severity8.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Eval injection in Chamilo LMS 2.0.0-alpha.1 through 2.0.0-RC.2 allows remote authenticated users to execute arbitrary PHP code. PlatformConfigurationController::decodeSettingArray() passes a database-backed platform setting to PHP eval() after JSON decoding fails, so injected PHP syntax is interpreted as code. Administrative access is required to plant the setting; any request to the unauthenticated /platform-config/list route triggers execution as the web-server account.

The record

CVE
CVE-2026-33618
Published
Apr 10, 2026
Updated
Apr 10, 2026
Vendor
Chamilo
Product
Chamilo LMS
Classifications
CWE-95, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.0.0-alpha.1, < 2.0.0-RC.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Chamilo · Chamilo LMSversion=>= 2.0.0-alpha.1, < 2.0.0-RC.3

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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