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CVE-2020-1933

21
FAUCET Score

CVE-2020-1933 describes a Cross-Site Scripting (XSS) vulnerability in Apache NiFi versions 1.0.0 through 1.10.0, specifically impacting users accessing the UI via Firefox. An authenticated user could unknowingly trigger the injection of malicious scripts. Rated as MEDIUM severity (CVSS 6.1), this vulnerability requires user interaction and network access, with potential impacts on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, <= 1.10.0CPE matchmatch criteria
cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.81%
Probability of exploitation in next 30 days
EPSS Percentile
85.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0281 is in the 93rd percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.nifi:nifiFixed in: 1.11.0

Vendor Advisories (1)

mavenGHSA-pqhq-xx62-2v2pmedium

Cross-site scripting in Apache NiFi

Jan 6, 2022

References

nifi.apache.org / security.html
Vendor Advisory