CVE-2025-26659 Cross-site scripting in SAP NetWeaver Application Server ABAP (applications based on SAP GUI for HTML)
An attacker can execute malicious JavaScript in a victim's browser via crafted web messages, compromising data and manipulating content in SAP NetWeaver ABAP.
- 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-2025-26659?
CVE-2025-26659 is a medium-severity cross-site scripting vulnerability in SAP_SE SAP NetWeaver Application Server ABAP (applications based on SAP GUI for HTML), published on 11 Mar 2025. 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 Application Server ABAP does not sufficiently encode user-controlled inputs, leading to DOM-basedCross-Site Scripting (XSS) vulnerability. This allows an attacker with no privileges, to craft a malicious web message that exploits WEBGUI functionality. On successful exploitation, the malicious JavaScript payload executes in the scope of victim�s browser potentially compromising their data and/or manipulating browser content. This leads to a limited impact on confidentiality and integrity. There is no impact on availability
Weakness: CWE-79
Which versions are affected by CVE-2025-26659?
How do I fix CVE-2025-26659?
No fix has been published for CVE-2025-26659 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-2025-26659 being exploited?
There is no known exploitation of CVE-2025-26659 in the wild and no public exploit code.
Sources
Also known as GHSA-723r-89px-cqxv.