Cloudanix VulnDB

CVE-2026-52798

High · 8.9

CVSS

8.9

EPSS

0.4%

Published

Jun 24, 2026

CISA due date

—

The record

Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitize_ipynb, the inserted content is re-rendered on the client side without sanitization using marked() on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can be regenerated. As a result, when a victim views an attacker-crafted .ipynb file and clicks the link, arbitrary JavaScript is executed in the Gogs origin, leading to a click-based Stored XSS. This vulnerability is fixed in 0.14.3.

Affected packages

Ecosystem Package Introduced Fixed

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