CVE-2026-1106Public exploitNetwork attack vector

Authenticated consent deletion via unchecked userId

Published Jan 18, 2026 · Updated Jan 18, 2026

Improper authorization in Chamilo LMS 2.0.0 Beta 1 allows remote authenticated users to delete other users' legal consent records. The deleteLegal function in src/CoreBundle/Controller/SocialController.php uses a userId from the JSON request body to delete matching legal_accept data without ownership or administrator authorization. A standard logged-in account is sufficient; the operation changes or removes another user's consent state but does not expose record contents.

CVSS severity5.4
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Chamilo LMS 2.0.0 Beta 1 allows remote authenticated users to delete other users' legal consent records. The deleteLegal function in src/CoreBundle/Controller/SocialController.php uses a userId from the JSON request body to delete matching legal_accept data without ownership or administrator authorization. A standard logged-in account is sufficient; the operation changes or removes another user's consent state but does not expose record contents.

The record

CVE
CVE-2026-1106
Published
Jan 18, 2026
Updated
Jan 18, 2026
Vendor
Chamilo
Product
Chamilo LMS
Classifications
CWE-285, CWE-266, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 18, 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 Beta 1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chamilo · Chamilo LMSversion=2.0.0 Beta 1

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5HXLabCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
5.5VulDBAV:N/AC:L/Au:S/C:N/I:P/A:P
5.4VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-266Incorrect Privilege Assignment
T1190Exploit Public-Facing Application

Public exploit references

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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