Chamilo LMS up to 1.11.29 CSV File Parser cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Chamilo LMS up to 1.11.29. Impacted is an unknown function of the component CSV File Parser. Such manipulation leads to cross site scripting. This vulnerability is documented as CVE-2025-50186. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Chamilo LMS up to 1.11.29 and classified as problematic. Affected by this issue is an unknown part of the component CSV File Parser. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

Chamilo is a learning management system. Prior to version 1.11.30, a stored cross-site scripting (XSS) vulnerability exists due to insufficient sanitization of CSV filenames. An attacker can upload a maliciously named CSV file (e.g., <img src=q onerror=prompt(8)>.csv) that leads to JavaScript execution when viewed by administrators or users with access to import logs or file views. This issue has been patched in version 1.11.30.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-50186 since 06/13/2025. The exploitation is known to be easy. The attack may be launched remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 1.11.30 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9fef8f30b41d586cb4f4fc823906c16a12ae0ff4 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-208155). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Content Management System

Vendor

• Chamilo

Name

• LMS

Version

• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.11.5
• 1.11.6
• 1.11.7
• 1.11.8
• 1.11.9
• 1.11.10
• 1.11.11
• 1.11.12
• 1.11.13
• 1.11.14
• 1.11.15
• 1.11.16
• 1.11.17
• 1.11.18
• 1.11.19
• 1.11.20
• 1.11.21
• 1.11.22
• 1.11.23
• 1.11.24
• 1.11.25
• 1.11.26
• 1.11.27
• 1.11.28
• 1.11.29

License

• open-source

CPE 2.3info

• 🔒
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CPE 2.2info

• 🔒
• 🔒
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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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