CVE-2023-38702Public exploitNetwork attack vector

Authenticated code execution via traversable template filename

Published Aug 4, 2023 · Updated Oct 8, 2024

Path traversal in Knowage Server before 8.1.8 allows remote authenticated users to execute server-side code via template upload. DossierActivityResource.importTemplateFile appends an untrusted multipart filename to the dossier resource path without normalizing it or restricting the uploaded file type. Low-privileged access is sufficient to place a JSP in the knowageqbeengine web application and execute it by requesting the uploaded path.

CVSS severity9.9
Critical
EPSS probability1.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Knowage Server before 8.1.8 allows remote authenticated users to execute server-side code via template upload. DossierActivityResource.importTemplateFile appends an untrusted multipart filename to the dossier resource path without normalizing it or restricting the uploaded file type. Low-privileged access is sufficient to place a JSP in the knowageqbeengine web application and execute it by requesting the uploaded path.

The record

CVE
CVE-2023-38702
Published
Aug 4, 2023
Updated
Oct 8, 2024
Vendor
Knowage Labs
Product
Knowage Server
Classifications
CWE-22, T1505.003, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 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=>= 6.0.0, < 8.1.8
  2. Affected versionversion=6.0.0 <8.1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Knowage Labs · Knowage Serverversion=>= 6.0.0, < 8.1.8; version=6.0.0 <8.1.8

Published CVSS scores

9.9GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS: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 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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1505.003Server Software Component: Web Shell
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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