CVE-2023-0021 Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver
An unauthenticated attacker can inject malicious scripts into SAP NetWeaver to steal sensitive user credentials via reflected Cross-Site Scripting.
- 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
- None listed
What is CVE-2023-0021?
CVE-2023-0021 is a medium-severity cross-site scripting vulnerability in Sap Netweaver, published on 14 Mar 2023. 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
Due to insufficient encoding of user input, SAP NetWeaver - versions 700, 701, 702, 731, 740, 750, allows an unauthenticated attacker to inject code that may expose sensitive data like user ID and password, which could lead to reflected Cross-Site scripting. These endpoints are normally exposed over the network and successful exploitation can partially impact confidentiality of the application.
Weakness: CWE-79
Which versions are affected by CVE-2023-0021?
It affects 1 product.
Products include Sap Netweaver.
How do I fix CVE-2023-0021?
No fix has been published for CVE-2023-0021 yet. Limit exposure of the affected software until one is available.
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-2023-0021 being exploited?
There is no known exploitation of CVE-2023-0021 in the wild and no public exploit code.
Other vulnerabilities in Sap Netweaver
Sources
Also known as GHSA-42mg-mwh3-h53h.