Chamilo LMS 2.0.0-alpha.4 AiController openAnswerGrade exeId/questionId improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k1.14

Summaryinfo

A vulnerability classified as critical was found in Chamilo LMS 2.0.0-alpha.4. Affected by this issue is the function AiController::openAnswerGrade of the component AiController. The manipulation of the argument exeId/questionId results in improper authorization. This vulnerability was named CVE-2026-114389. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Chamilo LMS 2.0.0-alpha.4. It has been classified as critical. Affected is the function AiController::openAnswerGrade of the component AiController. The manipulation of the argument exeId/questionId with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Chamilo LMS from 2.0.0-alpha.4 before 2.0.0-RC.3 contains a missing authorization vulnerability in AiController::openAnswerGrade that allows any authenticated user to obtain AI grading of other students' exam attempts. Attackers can enumerate exeId and questionId values sent to the open_answer_grade endpoint to expose other students' answers through feedback and consume AI quota.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-114389 since 10/21/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 2.0.0-RC.3 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: LMS 2.0.0-RC.3

Timelineinfo

10/21/2026 Advisory disclosed
10/21/2026 +0 days CVE reserved
10/21/2026 +0 days VulDB entry created
10/21/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-114389 (🔒)
GCVE (CVE): GCVE-0-2026-114389
GCVE (VulDB): GCVE-100-424788

Entryinfo

Created: 10/21/2026 15:02
Changes: 10/21/2026 15:02 (79)
Complete: 🔍
Cache ID: 216::103

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