Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend applies only a length check and the frontend writes comment content directly through innerHTML, any team member who can comment on a shared file can embed HTML such as an image error handler or script that executes in the browser of every other collaborator. The attack is passive: any user who opens the comments panel on the affected file triggers script execution on the Penpot origin, allowing theft of session cookies, actions performed as the victim, and access to their files and projects. This issue is fixed in version 2.15.3.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 27 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Penpot
Penpot penpot
Vendors & Products Penpot
Penpot penpot

Wed, 26 Aug 2026 23:15:00 +0000

Type Values Removed Values Added
Description Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend applies only a length check and the frontend writes comment content directly through innerHTML, any team member who can comment on a shared file can embed HTML such as an image error handler or script that executes in the browser of every other collaborator. The attack is passive: any user who opens the comments panel on the affected file triggers script execution on the Penpot origin, allowing theft of session cookies, actions performed as the victim, and access to their files and projects. This issue is fixed in version 2.15.3.
Title Penpot: Stored XSS via comment content, innerHTML renders unsanitized HTML
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-27T15:16:47.257Z

Reserved: 2026-05-19T21:10:38.797Z

Link: CVE-2026-47665

cve-icon Vulnrichment

Updated: 2026-08-27T15:16:26.690Z

cve-icon NVD

Status : Received

Published: 2026-08-26T23:17:13.693

Modified: 2026-08-27T17:18:26.813

Link: CVE-2026-47665

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-27T00:30:14Z

Weaknesses