Chamilo LMS up to 1.11.24 bigUpload.php unrestricted upload

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Chamilo LMS up to 1.11.24. This vulnerability affects unknown code in the library /main/inc/lib/javascript/bigupload/inc/bigUpload.php. This manipulation causes unrestricted upload. This vulnerability is handled as CVE-2023-4220. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in Chamilo LMS up to 1.11.24 (Content Management System) and classified as problematic. Affected by this vulnerability is an unknown code in the library /main/inc/lib/javascript/bigupload/inc/bigUpload.php. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Unrestricted file upload in big file upload functionality in `/main/inc/lib/javascript/bigupload/inc/bigUpload.php` in Chamilo LMS <= v1.11.24 allows unauthenticated attackers to perform stored cross-site scripting attacks and obtain remote code execution via uploading of web shell.

The weakness was released 11/28/2023. It is possible to read the advisory at support.chamilo.org. This vulnerability is known as CVE-2023-4220 since 08/08/2023. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:main/inc/lib/javascript/bigupload/inc/bigUpload.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (52083). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CNA Base Score: 8.1
CNA Vector (STAR Labs SG Pte. Ltd.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

08/08/2023 🔍
11/28/2023 +112 days 🔍
11/28/2023 +0 days 🔍
03/21/2025 +478 days 🔍

Sourcesinfo

Advisory: 3b487a55076fb06f96809b790a35dcdd42f8ec49
Status: Confirmed

CVE: CVE-2023-4220 (🔍)
GCVE (CVE): GCVE-0-2023-4220
GCVE (VulDB): GCVE-100-246271
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/28/2023 08:31
Updated: 03/21/2025 00:14
Changes: 11/28/2023 08:31 (47), 12/17/2023 14:27 (2), 12/17/2023 14:31 (12), 03/21/2025 00:14 (26)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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