CVE-2026-52816

Katalog CVE

CVSS 5.4 · Medium EPSS 0,68%

Kerentanan Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). Skor CVSS 4.0 5.4 (Medium) menurut github.com.

Deskripsi (NVD)

Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook (ipynb) sanitizer endpoint at POST /-/api/sanitize_ipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting (XSS). The endpoint uses bluemonday.UGCPolicy() with p.AllowURLSchemes("data") which permits all data URI schemes including data:text/html, enabling attackers to inject malicious HTML/JavaScript. Additionally, the endpoint has no authentication middleware, allowing any registered user to exploit this vulnerability. This vulnerability is fixed in 0.14.3.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

25 Juni 2026

Status NVD

Deferred

CVSS 4.0

5.4 (Medium), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

EPSS (30 hari)

0,68% peluang dieksploitasi; lebih tinggi dari 50,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/gogs/gogs/commit/dd1bd9837aa196b3ed3a8ee21e5727b5d7a986a3
• https://github.com/gogs/gogs/pull/8326
• https://github.com/gogs/gogs/releases/tag/v0.14.3
• https://github.com/gogs/gogs/security/advisories/GHSA-3w28-36p9-w929