CVE-2022-40407

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 76.3% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-09-29 13:20Z4 YR AGO

Last updated

2025-05-20 19:15Z1 YR AGO

Reserved

2022-09-11

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-434Unrestricted Upload of File with Dangerous TypeBase

Data version

5.1

Document digest

4c4d0016f0e47f65fef4721791e41a36d937acb9cdf052c91244bd27950dcc86

• github.comhttps://github.com/chamilo/chamilo-lmsx_refsource_MISC
• support.chamilo.orghttps://support.chamilo.org/projects/chamilo-18/wiki/Security_issues#Issue-94-2022-09-06-High-impact-Moderate-risk-Authenticated-RCE-via-zipslip-attack-in-file-uploadx_refsource_CONFIRM
• github.comhttps://github.com/alexmackey/security-research/blob/main/chamilo/ChamiloRceViaZipSlip.mdx_refsource_MISC