CVE-2026-0499 Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
Unauthenticated attackers can inject malicious scripts via URL parameters in SAP NetWeaver Enterprise Portal, leading to session theft or content manipulation.
- 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-2026-0499?
CVE-2026-0499 is a medium-severity cross-site scripting vulnerability in SAP_SE SAP NetWeaver Enterprise Portal, published on 13 Jan 2026. 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
SAP NetWeaver Enterprise Portal allows an unauthenticated attacker to inject malicious scripts into a URL parameter. The scripts are reflected in the server response and executed in a user's browser when the crafted URL is visited, leading to theft of session information, manipulation of portal content, or user redirection, resulting in a low impact on the application's confidentiality and integrity, with no impact on availability.
Weakness: CWE-79
Which versions are affected by CVE-2026-0499?
How do I fix CVE-2026-0499?
No fix has been published for CVE-2026-0499 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-2026-0499 being exploited?
There is no known exploitation of CVE-2026-0499 in the wild and no public exploit code.
Sources
Also known as GHSA-jmwc-hm8x-6w23.