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Vulnerabilities

Vulnerability · CVE-2023-4220

chamilo chamilo Unrestricted Upload of File with Dangerous Type

Published Dec 5, 2024 · catalog updated Dec 5, 2024 · chamilo chamilo Unrestricted Upload

Patch now

CVE-2023-4220 is in the CISA known-exploited catalog. Confirm chamilo chamilo Unrestricted Upload against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (chamilo chamilo Unrestricted Upload).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
76.08%
Remediation
Remediation guidance
Affected products
vendor chamilo chamilo

Unrestricted file upload in big file upload functionality in 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. VulnCheck canary evidence. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor chamilo chamiloversion unspecified

How to fix CVE-2023-4220

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-4220 is in the CISA known-exploited catalog. Confirm chamilo chamilo Unrestricted Upload against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 76.08%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 5, 2024 · VulnCheck KEV

    Detected

    Unrestricted file upload in big file upload functionality in 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. VulnCheck canary evidence. Initial-access exploit intelligence.

  2. Dec 5, 2024 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2023-4220

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-4220

    30-day exploitation probability 76.1%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2023-4220

    Unrestricted file upload in big file upload functionality in 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.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.