# CVE-2025-63785: CVE-2025-63785

Status: published. Published: 2025-11-07. Updated: 2026-11-07.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- onlook / onlook: 0.2.32 (affected, custom). Source: NVD

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:onlook:onlook:0.2.32:*:*:*:*:*:*:*",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 6.1 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable no; technical impact partial; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-20

## Exploit evidence

- exploit: https://blog.soohyun.tech/CVE-2025-63785-DOM-XSS-in-Onlook-27e557175d2e80e1b210c75b77952115 (cve@mitre.org)

## References

- https://blog.soohyun.tech/CVE-2025-63785-DOM-XSS-in-Onlook-27e557175d2e80e1b210c75b77952115 (cve@mitre.org; Exploit, Third Party Advisory)

- https://tossbank.notion.site/DOM-XSS-in-onlook-27e557175d2e80e1b210c75b77952115 (cve@mitre.org; Broken Link)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-63785; retrieved 2026-11-07; source updated 2026-11-07

Revision: 7d7fb3ca6bfa77bbc729027d0f9dba690279133abcec9a374753d2020fabe57a

Canonical: https://y2.dev/cve/CVE-2025-63785

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.