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CVE-2023-4220

HIGH
Published 2023-11-28T07:11:47.830Z
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Expert Analysis

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CVSS Score

V3.1
8.1
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.930
probability
of exploitation in the wild

There is a 93.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.998
Higher than 99.8% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

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.

Available Exploits

Chamilo LMS <= 1.11.24 - Remote Code Execution

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.

ID: CVE-2023-4220
Author: s4e-io Medium

References:

Related News

No news articles found for this CVE.

Affected Products

Chamilo

Chamilo

Affected Versions:

0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-9wc2-3gq5-2f4c

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-4220
WEB https://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49
WEB https://starlabs.sg/advisories/23/23-4220
WEB https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-130-2023-09-04-Critical-impact-High-risk-Unauthenticated-users-may-gain-XSS-and-unauthenticated-RCE-CVE-2023-4220

Advisory provided by GitHub Security Advisory Database. Published: November 28, 2023, Modified: November 28, 2023

References

https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-130-2023-09-04-Critical-impact-High-risk-Unauthenticated-users-may-gain-XSS-and-unauthenticated-RCE-CVE-2023-4220
https://starlabs.sg/advisories/23/23-4220
https://github.com/chamilo/chamilo-lms/commit/3b487a55076fb06f96809b790a35dcdd42f8ec49
Published: 2023-11-28T07:11:47.830Z
Last Modified: 2024-08-02T07:17:12.155Z
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