# CVE-2025-63785: Cross-site scripting in n/a

> An attacker can inject malicious scripts into the Onlook text editor via unsanitized input, leading to arbitrary code execution in the user's session.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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:** 7 Nov 2025
- **Updated:** 10 Nov 2025
- **Also known as:** GHSA-f2mq-8pqx-fqh5

## What is CVE-2025-63785?

CVE-2025-63785 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Nov 2025. 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

A DOM-based Cross-Site Scripting (XSS) vulnerability exists in the text editor feature of the Onlook web application 0.2.32. This vulnerability occurs because user-supplied input is not properly sanitized before being directly injected into the DOM via innerHTML when editing a text element. An attacker can exploit this to inject malicious HTML and script code, which is then executed within the context of the preview iframe, allowing for the execution of arbitrary scripts in the user's session.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-20 (Improper Input Validation), CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2025-63785?

It affects 1 product.


Products: Onlook Onlook.

## How do I fix CVE-2025-63785?

No fix has been published for CVE-2025-63785 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-63785 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63785 exists.

## Other vulnerabilities in n/a

- [CVE-2025-63783](https://insights.sbomify.com/CVE-2025-63783/): Missing authorization in n/a (high 7.6)
- [CVE-2025-63784](https://insights.sbomify.com/CVE-2025-63784/): Open redirect in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-63785 and fix it if it is affected.

What it is: CVE-2025-63785 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63785 exists.

Affected product: n/a. 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-2025-63785/ (Markdown: https://insights.sbomify.com/CVE-2025-63785/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-63785
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63785
- OSV: https://osv.dev/vulnerability/CVE-2025-63785

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-63785/
Summaries are generated and may contain mistakes; the official description above is the record.