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CVE-2026-52798

8.9 Élevée

Publiée le 24/06/2026 à 23:16 · Modifiée le 25/06/2026 à 20:16 · Analyse NVD reportée · Source : security-advisories@github.com

Description

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.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 8.9 Élevée security-advisories@github.com CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

Faiblesses (CWE)

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