# CVE-2023-30743: Improper Neutralization of Input in SAPUI5

> Attackers can inject untrusted CSS to block interactions or exploit missing URL validation to read or modify user data via phishing.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L`)
- **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:** 9 May 2023
- **Updated:** 28 Jan 2025
- **Also known as:** GHSA-4x72-m77v-mr6h

## What is CVE-2023-30743?

CVE-2023-30743 is a high-severity cross-site scripting vulnerability in SAP_SE SAPUI5, published on 9 May 2023. 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 neutralization of input in SAPUI5 - versions SAP_UI 750, SAP_UI 754, SAP_UI 755, SAP_UI 756, SAP_UI 757, UI_700 200, sap.m.FormattedText SAPUI5 control allows injection of untrusted CSS. This blocks user’s interaction with the application. Further, in the absence of URL validation by the application, the vulnerability could lead to the attacker reading or modifying user’s information through phishing attack.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-30743?

It affects 1 product.


Products: Sap Sapui5.

## How do I fix CVE-2023-30743?

No fix has been published for CVE-2023-30743 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-30743 being exploited?

There is no known exploitation of CVE-2023-30743 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-30743 and fix it if it is affected.

What it is: CVE-2023-30743 is a high-severity cross-site scripting vulnerability in SAP_SE SAPUI5, published on 9 May 2023. 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-2023-30743 in the wild and no public exploit code.

Affected product: SAP_SE SAPUI5. 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-2023-30743/ (Markdown: https://insights.sbomify.com/CVE-2023-30743/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-30743
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-30743
- OSV: https://osv.dev/vulnerability/CVE-2023-30743

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-30743/
Summaries are generated and may contain mistakes; the official description above is the record.