CVE-2023-5562Network attack vector

Cross-site scripting via unsanitized JavaScript views

Published Oct 12, 2023 · Updated Sep 18, 2024

Cross-site scripting in KNIME Analytics Platform before 5.2.2 allows remote attackers to execute JavaScript through displayed view data. Several JavaScript-based view nodes render data without sanitization because client-HTML sanitization is disabled by default. Exploitation requires an executor for KNIME Server or Business Hub and user interaction, permitting actions within that user's browser privileges.

CVSS severity6.1
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in KNIME Analytics Platform before 5.2.2 allows remote attackers to execute JavaScript through displayed view data. Several JavaScript-based view nodes render data without sanitization because client-HTML sanitization is disabled by default. Exploitation requires an executor for KNIME Server or Business Hub and user interaction, permitting actions within that user's browser privileges.

The record

CVE
CVE-2023-5562
Published
Oct 12, 2023
Updated
Sep 18, 2024
Vendor
KNIME
Product
KNIME Analytics Platform
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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 <5.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

KNIME · KNIME Analytics Platformversion=0 <5.2.0

Published CVSS scores

6.1KNIME AGCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1059.007JavaScript/JScript

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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