TI-2025-39459 Aliases CVE-2025-63785 GHSA-f2mq-8pqx-fqh5

A DOM-based Cross-Site Scripting (XSS) vulnerability exists in the text editor feature of…

MEDIUM 60CWE-116Published 2025-11-07 · Updated 2025-11-10

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00285 21st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:onlook:onlook:0.2.32:::::::*	0.2.32	Vulnerable	onlook

cpe:2.3:a:onlook:onlook:0.2.32:*:*:*:*:*:*:* Versions 0.2.32 Vulnerable ·onlook

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-63785
2026-10-03 Alias added: GHSA-f2mq-8pqx-fqh5

References

Exploit 1

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

Other 1

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

TI-2025-39457 A Broken Object Level Authorization (BOLA) vulnerability was discovered in the tRPC… CVSS 3.1HIGH 7.6
TI-2025-39458 An Open Redirect vulnerability exists in the OAuth callback handler in file… CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences