CVE-2020-1933 Cross-site scripting in Apache NiFi
An attacker can inject malicious scripts into the Apache NiFi UI via an authenticated user in Firefox, potentially leading to code execution or account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-1933?
CVE-2020-1933 is a medium-severity cross-site scripting vulnerability in Apache Nifi, published on 28 Jan 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A XSS vulnerability was found in Apache NiFi 1.0.0 to 1.10.0. Malicious scripts could be injected to the UI through action by an unaware authenticated user in Firefox. Did not appear to occur in other browsers.
Weakness: CWE-79
Which versions are affected by CVE-2020-1933?
3 open source packages ship an affected version, including org.apache.nifi:nifi and nifi. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.nifi:nifi Maven | From 1.0.0 | 1.11.0 |
org.apache.nifi:nifi Maven | From 1.0.0 | 1.11.0 |
nifi Bitnami | From 1.0.0 to 1.10.0 | None |
Products include Apache Nifi.
How do I fix CVE-2020-1933?
Upgrade org.apache.nifi:nifi to 1.11.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2020-1933 being exploited?
There is no known exploitation of CVE-2020-1933 in the wild and no public exploit code.
Other vulnerabilities in Apache Nifi
- CVE-2018-1309 Improper Restriction of XML External Entity Reference in Apache NiFi
- CVE-2017-15697 Apache NiFi XSS issue in context path handling
- CVE-2017-5636 Injection in Apache NiFi
- CVE-2026-68981 Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests
- CVE-2023-36542 Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources
Sources
Also known as BIT-nifi-2020-1933, GHSA-pqhq-xx62-2v2p.