CVE-2026-27680

3.1 LOW 0.2% exploit odds Fix listed Auth & access Server

What it is

Due to improper input handling under certain conditions, SAP NetWeaver Application Server ABAP allows an attacker to inject custom Cascading Style Sheets (CSS) data into a web page served by the application. When a user accesses or clicks the affected page, the injected CSS is executed. As a result, the issue has a low impact on confidentiality, while integrity and availability are not impacted.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-05-14 19:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-26 14:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-05-14 19:16 UTC
Last modified: 2026-10-26 14:10 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-276 · Incorrect default permissions
Record status: Analyzed

Affected

Sap Netweaver Application Server Abap 758
Sap Netweaver Application Server Abap 816

Attack profile CVSS 3.1 · 3.1

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

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Fix and advisories

https://url.sap/sapsecuritypatchday

References

NVD record · CVE.org record