CVE-2025-3019Public exploitNetwork attack vector

Cross-site scripting via nonce injection into metadata

Published Mar 31, 2025 · Updated Mar 31, 2025

Cross-site scripting in KNIME Business Hub 1.12.0 through 1.12.3 and 1.13.0 through 1.13.2 allows remote attackers to run JavaScript. The nuxt-security nonce logic rewrites attacker-controlled script-like text inside meta tag attributes, breaking the attribute boundary and creating executable script tags. A victim must open a crafted link or page; code then runs with that user's permissions and can read or modify accessible data.

CVSS severity5.3
Medium
EPSS probability0.26%
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 Business Hub 1.12.0 through 1.12.3 and 1.13.0 through 1.13.2 allows remote attackers to run JavaScript. The nuxt-security nonce logic rewrites attacker-controlled script-like text inside meta tag attributes, breaking the attribute boundary and creating executable script tags. A victim must open a crafted link or page; code then runs with that user's permissions and can read or modify accessible data.

The record

CVE
CVE-2025-3019
Published
Mar 31, 2025
Updated
Mar 31, 2025
Vendor
KNIME
Product
KNIME Business Hub
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 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=1.12.0 <1.12.4
  2. Affected versionversion=1.13.0 <1.13.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

KNIME · KNIME Business Hubversion=1.12.0 <1.12.4; version=1.13.0 <1.13.3

Published CVSS scores

5.3KNIME AGCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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