# CVE-2026-27680: CSS Injection vulnerability in SAP NetWeaver Application Server ABAP

> An attacker can inject CSS into SAP NetWeaver pages, leading to low-impact confidentiality breaches when users interact with the affected content.

- **Severity:** Low 3.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **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 available:** No
- **Published:** 14 May 2026
- **Updated:** 14 May 2026
- **Also known as:** GHSA-4wqv-v86p-8q8g

## What is CVE-2026-27680?

CVE-2026-27680 is a low-severity cross-site scripting vulnerability in Sap Netweaver Application Server Abap, published on 14 May 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

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.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2026-27680?

It affects 1 product.


Products: Sap Netweaver Application Server Abap.

## How do I fix CVE-2026-27680?

No fix has been published for CVE-2026-27680 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-27680 being exploited?

There is no known exploitation of CVE-2026-27680 in the wild and no public exploit code.

## Other vulnerabilities in Sap Netweaver Application Server Abap

- [CVE-2026-0488](https://insights.sbomify.com/CVE-2026-0488/): Code Injection vulnerability in SAP CRM and SAP S/4HANA (Scripting Editor) (critical 9.9)
- [CVE-2021-40499](https://insights.sbomify.com/CVE-2021-40499/): Code injection in SAP NetWeaver Application Server for ABAP (SAP Cloud Print Manager and SAPSprint) (critical 9.8)
- [CVE-2023-27269](https://insights.sbomify.com/CVE-2023-27269/): Directory Traversal vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform (critical 9.6)
- [CVE-2023-27500](https://insights.sbomify.com/CVE-2023-27500/): Directory Traversal vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform (critical 9.6)
- [CVE-2023-0014](https://insights.sbomify.com/CVE-2023-0014/): Capture-replay vulnerability in SAP NetWeaver AS for ABAP and ABAP Platform (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-27680 and fix it if it is affected.

What it is: CVE-2026-27680 is a low-severity cross-site scripting vulnerability in Sap Netweaver Application Server Abap, published on 14 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-27680 in the wild and no public exploit code.

Affected product: Sap Netweaver Application Server Abap. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-27680/ (Markdown: https://insights.sbomify.com/CVE-2026-27680/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-27680
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-27680
- OSV: https://osv.dev/vulnerability/CVE-2026-27680

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-27680/
Summaries are generated and may contain mistakes; the official description above is the record.