What is the CVSS score of CVE-2025-63785?

CVE-2025-63785 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Onlook are affected by CVE-2025-63785?

CVE-2025-63785 presents moderate security risk, a input validation vulnerability rated CVSS 6.1. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for CVE-2025-63785?

Yes, a public proof-of-concept exploit is available for CVE-2025-63785. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-63785?

Within 30 days: Identify affected systems running the text editor feature of the Onlook web application 0.2.32 and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Onlook CVE-2025-63785

MEDIUM

Improper Input Validation (CWE-20)

2025-11-07 cve@mitre.org

XSS Onlook

6.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:21 vuln.today

PoC Detected

Dec 08, 2025 - 16:06 vuln.today

Public exploit code

CVE Published

Nov 07, 2025 - 17:15 nvd

MEDIUM 6.1

DescriptionCVE.org

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.

AnalysisAI

A DOM-based Cross-Site Scripting (XSS) vulnerability exists in the text editor feature of the Onlook web application 0.2.32. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. 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. Affected products include: Onlook.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.