CVE-2023-48031Public exploitNetwork attack vector

Arbitrary file upload via magic-byte spoofing

Published Nov 17, 2023 · Updated Sep 29, 2025

Unrestricted file upload in OpenSupports 4.11.0 allows remote attackers to upload disguised Windows batch files through ticket comments. The api/ticket/comment handler trusts spoofed file magic bytes when validating an uploaded file, allowing a dangerous .bat payload to masquerade as an accepted type. The published assessment requires no privileges or user interaction; a successful upload permits unauthorized file writes and reported arbitrary code execution.

CVSS severity9.8
Critical
EPSS probability1.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in OpenSupports 4.11.0 allows remote attackers to upload disguised Windows batch files through ticket comments. The api/ticket/comment handler trusts spoofed file magic bytes when validating an uploaded file, allowing a dangerous .bat payload to masquerade as an accepted type. The published assessment requires no privileges or user interaction; a successful upload permits unauthorized file writes and reported arbitrary code execution.

The record

CVE
CVE-2023-48031
Published
Nov 17, 2023
Updated
Sep 29, 2025
Vendor
OpenSupports
Product
OpenSupports
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2025Record 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=4.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenSupports · OpenSupportsversion=4.11.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

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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