CVE-2023-43792Network attack vector

Unauthenticated arbitrary file upload via mail form

Published Oct 30, 2023 · Updated Sep 5, 2024

Arbitrary file upload in the baserCMS 4.6.0 through 4.7.6 mail form allows remote attackers to write files via network requests. The vendor identifies the mail form as the affected locus but has not published which upload handler or validation failure accepts untrusted files. No authentication or user interaction is required; the documented consequence is arbitrary file placement, while server-side code execution is not established.

CVSS severity5.3
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in the baserCMS 4.6.0 through 4.7.6 mail form allows remote attackers to write files via network requests. The vendor identifies the mail form as the affected locus but has not published which upload handler or validation failure accepts untrusted files. No authentication or user interaction is required; the documented consequence is arbitrary file placement, while server-side code execution is not established.

The record

CVE
CVE-2023-43792
Published
Oct 30, 2023
Updated
Sep 5, 2024
Vendor
baserCMS Users Community
Product
baserCMS
Classifications
CWE-94, CAPEC-242, CAPEC-35, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 4.6.0, <= 4.7.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

baserCMS Users Community · baserCMSversion=>= 4.6.0, <= 4.7.6

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.3GitHub, Inc.CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-242Code Injection
CAPEC-35Leverage Executable Code in Non-Executable Files
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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