CVE-2023-30613Public exploitNetwork attack vector

User-assisted code execution via unrestricted attachment uploads

Published Apr 24, 2023 · Updated Feb 4, 2025

Unrestricted file upload in Kiwi TCMS before 12.2 allows remote authenticated users to deliver malicious code through attachments. The attachment upload path accepts arbitrary file types without validators, allowing executable files and files containing embedded JavaScript to be stored and served. An authenticated account must upload the file and a victim must click it; the result is browser script execution or execution of a downloaded program.

CVSS severity7.7
High
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Unrestricted file upload in Kiwi TCMS before 12.2 allows remote authenticated users to deliver malicious code through attachments. The attachment upload path accepts arbitrary file types without validators, allowing executable files and files containing embedded JavaScript to be stored and served. An authenticated account must upload the file and a victim must click it; the result is browser script execution or execution of a downloaded program.

The record

CVE
CVE-2023-30613
Published
Apr 24, 2023
Updated
Feb 4, 2025
Vendor
Kiwi TCMS
Product
Kiwi TCMS
Classifications
CWE-434, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 12.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Kiwi TCMS · Kiwi TCMSversion=< 12.2

Published CVSS scores

7.7GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
9.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
8.1GitHub, Inc. CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1204.002Malicious File

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo