Is CVE-2023-3545 in the CISA KEV catalog?

No. CVE-2023-3545 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-3545?

CVE-2023-3545 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-3545?

CVE-2023-3545 has an EPSS score of 1.96% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2023-3545?

No published fix for CVE-2023-3545 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2023-3545

CRITICALEPSS 78th pctl

9.8

CVSS v3

NVD

Description

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.

CWE-178

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.96%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Patch1

github.com

Exploit1

starlabs.sg

Vendor Advisory1

support.chamilo.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.