# CVE-2017-15430: Cross-site scripting in Chrome

> Remote attackers can inject arbitrary scripts or HTML into Google Chrome via the Chromecast plugin, potentially executing code or bypassing security controls.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/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:** Yes
- **Published:** 28 Aug 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-4w38-8r8g-73j7, UBUNTU-CVE-2017-15430

## What is CVE-2017-15430?

CVE-2017-15430 is a medium-severity cross-site scripting vulnerability in Google Chrome, published on 28 Aug 2018. 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

Insufficient data validation in Chromecast plugin in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page.

## Which versions are affected by CVE-2017-15430?

It affects 1 product.


Products: Google Chrome.

## How do I fix CVE-2017-15430?

Upgrade to a fixed version.

## Is CVE-2017-15430 being exploited?

There is no known exploitation of CVE-2017-15430 in the wild and no public exploit code.

## Other vulnerabilities in Google Chrome

- [CVE-2022-4135](https://insights.sbomify.com/CVE-2022-4135/): Google Chromium GPU Heap Buffer Overflow (critical 9.6, exploited in the wild)
- [CVE-2020-16017](https://insights.sbomify.com/CVE-2020-16017/): Google Chrome Use-After-Free (critical 9.6, exploited in the wild)
- [CVE-2020-16010](https://insights.sbomify.com/CVE-2020-16010/): Google Chrome for Android UI Heap Buffer Overflow (critical 9.6, exploited in the wild)
- [CVE-2026-87491](https://insights.sbomify.com/CVE-2026-87491/): Google Chromium V8 Out of Bounds Write (high 8.8, exploited in the wild)
- [CVE-2026-85046](https://insights.sbomify.com/CVE-2026-85046/): Google Chromium V8 Type Confusion (high 8.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-15430 and fix it if it is affected.

What it is: CVE-2017-15430 is a medium-severity cross-site scripting vulnerability in Google Chrome, published on 28 Aug 2018. 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-2017-15430 in the wild and no public exploit code.

Affected product: Google Chrome. 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-2017-15430/ (Markdown: https://insights.sbomify.com/CVE-2017-15430/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-15430
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-15430
- OSV: https://osv.dev/vulnerability/CVE-2017-15430

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-15430/
Summaries are generated and may contain mistakes; the official description above is the record.