CVE-2023-35189Public exploitNetwork attack vector

Unauthenticated code execution via executable file upload

Published Jul 18, 2023 · Updated Oct 28, 2024

Unrestricted file upload in Iagona ScrutisWeb 2.1.37 and earlier allows remote attackers to execute code through a crafted ASP file. The AddFile() method in Scrutis.Front.dll accepts an unauthenticated multipart POST and stores the file under /Files/telechar/, where the web server executes uploaded scripts. No account or user interaction is required; successful exploitation runs attacker-supplied commands on the ScrutisWeb server and can support log deletion or further intrusion.

CVSS severity10.0
Critical
EPSS probability1.03%
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 Iagona ScrutisWeb 2.1.37 and earlier allows remote attackers to execute code through a crafted ASP file. The AddFile() method in Scrutis.Front.dll accepts an unauthenticated multipart POST and stores the file under /Files/telechar/, where the web server executes uploaded scripts. No account or user interaction is required; successful exploitation runs attacker-supplied commands on the ScrutisWeb server and can support log deletion or further intrusion.

The record

CVE
CVE-2023-35189
Published
Jul 18, 2023
Updated
Oct 28, 2024
Vendor
Iagona
Product
ScrutisWeb
Classifications
CWE-434, T1190, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=0 <=2.1.37

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Iagona · ScrutisWebversion=0 <=2.1.37

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0CISA ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application
T1505.003Web Shell

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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