CVE-2023-26578Network attack vector

Authenticated command execution via dangerous file upload

Published Oct 25, 2023 · Updated Sep 10, 2024

Unrestricted file upload in IDAttend IDWeb 3.1.052 and earlier allows remote authenticated users to execute commands on the server. The upload handler accepts dangerous ASP or ASPX content and places it in the web root, where IIS can execute the file; the publisher does not identify the responsible endpoint or function. A valid application account and network access to IDWeb are required, and successful exploitation grants command execution with the web service's server privileges.

CVSS severity8.8
High
EPSS probability1.46%
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 IDAttend IDWeb 3.1.052 and earlier allows remote authenticated users to execute commands on the server. The upload handler accepts dangerous ASP or ASPX content and places it in the web root, where IIS can execute the file; the publisher does not identify the responsible endpoint or function. A valid application account and network access to IDWeb are required, and successful exploitation grants command execution with the web service's server privileges.

The record

CVE
CVE-2023-26578
Published
Oct 25, 2023
Updated
Sep 10, 2024
Vendor
IDAttend Pty Ltd
Product
IDWeb
Classifications
CWE-434, CWE-22, CAPEC-126, CAPEC-650, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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 <=3.1.052

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IDAttend Pty Ltd · IDWebversion=0 <=3.1.052

Published CVSS scores

8.8The Missing Link AustraliaCVSS:3.1/AV:N/AC:L/PR:L/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
CAPEC-650Upload a Web Shell to a Web Server
T1505.003Web Shell

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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