CVE-2025-63785

medium

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.

References

https://tossbank.notion.site/DOM-XSS-in-onlook-27e557175d2e80e1b210c75b77952115

https://blog.soohyun.tech/CVE-2025-63785-DOM-XSS-in-Onlook-27e557175d2e80e1b210c75b77952115

Details

Source: Mitre, NVD

Published: 2025-11-07

Updated: 2025-11-12

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00024