CVE-2026-33737 | BDVDB-2026-326321 Detail

chamilochamilo-lms

Description#

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, multiple files use simplexml_load_string() without XXE protection. With LIBXML_NOENT flag, arbitrary server files can be read. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-611 Improper Restriction of XML External Entity Reference

References#

Exploit#

No public exploit known

History#

Version 12026-04-10Record published in the CVE List.
Version 22026-04-13Most recent update recorded in the CVE List.

Published

Published: 2026-04-10
Last modified: 2026-04-13

Vendor information

Vendor: chamilo
Product: chamilo-lms

All chamilo vulnerabilities

Score

5.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 13.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

XML External Entity

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.11.38
Fixed
Not stated
Vulnerable
>= 2.0.0-alpha.1, < 2.0.0-RC.3
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.3 Medium

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).