CVE-2026-28430Network attack vector

Arbitrary SQL execution via unparameterized custom_dates filter

Published Mar 16, 2026 · Updated Mar 16, 2026

SQL injection in Chamilo LMS before 1.11.34 allows remote attackers to execute arbitrary SQL commands through custom_dates. model.ajax.php incorporates the custom_dates value from an unauthenticated jqGrid filter into a SQL WHERE clause without parameterization. Successful exploitation exposes the database and, when combined with the predictable legacy password-reset flow, grants full administrative account access.

CVSS severity9.8
Critical
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Chamilo LMS before 1.11.34 allows remote attackers to execute arbitrary SQL commands through custom_dates. model.ajax.php incorporates the custom_dates value from an unauthenticated jqGrid filter into a SQL WHERE clause without parameterization. Successful exploitation exposes the database and, when combined with the predictable legacy password-reset flow, grants full administrative account access.

The record

CVE
CVE-2026-28430
Published
Mar 16, 2026
Updated
Mar 16, 2026
Vendor
Chamilo
Product
Chamilo LMS
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 16, 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=< 1.11.34

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Chamilo · Chamilo LMSversion=< 1.11.34

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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