CVE-2026-31939Network attack vector

Authenticated file deletion via unchecked traversal path

Published Apr 10, 2026 · Updated Apr 10, 2026

Path traversal in Chamilo LMS before 1.11.38 allows remote authenticated users to delete server files through a crafted test parameter. The savescores.php handler concatenates the test request value with the course document path and passes the result to my_delete without a path-boundary check. Course-context access is required, and deletion is limited to files writable by the web-server account under the constructed user-specific .t.html name.

CVSS severity8.3
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Chamilo LMS before 1.11.38 allows remote authenticated users to delete server files through a crafted test parameter. The savescores.php handler concatenates the test request value with the course document path and passes the result to my_delete without a path-boundary check. Course-context access is required, and deletion is limited to files writable by the web-server account under the constructed user-specific .t.html name.

The record

CVE
CVE-2026-31939
Published
Apr 10, 2026
Updated
Apr 10, 2026
Vendor
Chamilo
Product
Chamilo LMS
Classifications
CWE-73, CWE-22, T1485
Attack vector
network
Privileges
authenticated

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=< 1.11.38

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Chamilo · Chamilo LMSversion=< 1.11.38

Published CVSS scores

8.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-73External Control of File Name or Path
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1485Data Destruction

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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