Improper sanitisation in `main/inc/lib/fileUpload.lib.php` in Chamilo LMS <= v1.11.20 on Windows and Apache installations allows unauthenticated attackers to bypass file upload security protections and obtain remote code execution via uploading of `.htaccess` file. This vulnerability may be exploited by privileged attackers or chained with unauthenticated arbitrary file write vulnerabilities, such as CVE-2023-3533, to achieve remote code execution.
Published 2023-11-28 07:15:43
Updated 2023-12-04 18:50:47
View at NVD,   CVE.org
Vulnerability category: Execute code

Products affected by CVE-2023-3545

Exploit prediction scoring system (EPSS) score for CVE-2023-3545

1.47%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-3545

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
STAR Labs SG Pte. Ltd.
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2023-3545

  • The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.
    Assigned by:
    • info@starlabs.sg (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2023-3545

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