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CVE-2024-45477: Apache NiFi: Improper Neutralization of Input in Parameter Description

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-29 · updated 2026-06-17
• Weakness: CWE-79

Description

Apache NiFi 1.10.0 through 1.27.0 and 2.0.0-M1 through 2.0.0-M3 support a description field for Parameters in a Parameter Context configuration that is vulnerable to cross-site scripting. An authenticated user, authorized to configure a Parameter Context, can enter arbitrary JavaScript code, which the client browser will execute within the session context of the authenticated user. Upgrading to Apache NiFi 1.28.0 or 2.0.0-M4 is the recommended mitigation.

Affected products

• Apache Software Foundation Apache NiFi: from 1.10.0 through 1.27.0; 2.0.0-milestone1, 2.0.0-milestone2, 2.0.0-milestone3

References

• https://lists.apache.org/thread/shdv0tw9hggj7tx9pl7g93mgok2lwbj9
• http://www.openwall.com/lists/oss-security/2024/10/28/1

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