CVE-2024-45477Network attack vector

Stored XSS via unescaped parameter descriptions

Published Oct 29, 2024 · Updated Oct 29, 2024

Stored XSS in Apache NiFi 1.10.0 through 1.27.0 and 2.0.0-M1 through 2.0.0-M3 allows remote authenticated users to execute JavaScript. The parameter-context tooltip passes parameter.description directly to qTip as HTML instead of escaping user-controlled text. Parameter Context configuration permission is required, and a viewing authenticated user’s browser runs the stored script in that user’s session context.

CVSS severity4.6
Medium
EPSS probability0.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Apache NiFi 1.10.0 through 1.27.0 and 2.0.0-M1 through 2.0.0-M3 allows remote authenticated users to execute JavaScript. The parameter-context tooltip passes parameter.description directly to qTip as HTML instead of escaping user-controlled text. Parameter Context configuration permission is required, and a viewing authenticated user’s browser runs the stored script in that user’s session context.

The record

CVE
CVE-2024-45477
Published
Oct 29, 2024
Updated
Oct 29, 2024
Vendor
The Apache Software Foundation
Product
Apache NiFi
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 29, 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=1.10.0 <=1.27.0
  2. Affected versionversion=2.0.0-M1 <=2.0.0-M3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache NiFiversion=1.10.0 <=1.27.0; version=2.0.0-M1 <=2.0.0-M3

Published CVSS scores

5.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
4.6Apache Software FoundationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/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 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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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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