Answer in brief
CVE-2024-45477 records a Medium severity (CVSS 4.6) vulnerability in Apache NiFi Cross-site Scripting vulnerability. The current sources do not mark it as known exploited. The current feed maps org.apache.nifi:nifi-web-ui (maven), org.apache.nifi:nifi-web-ui (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.apache.nifi:nifi-web-ui (maven), org.apache.nifi:nifi-web-ui (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.apache.nifi:nifi-web-uimaven | >=1.10.0 <1.28.0 | 1.28.0 |
| org.apache.nifi:nifi-web-uimaven | >=2.0.0-M1 <2.0.0-M4 | 2.0.0-M4 |
Published upstream
Oct 29, 2024
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 4, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.