CVE-2026-71555

Katalog CVE

CVSS 4.1 · Medium EPSS 0,29%

Kerentanan Use of Web Link to Untrusted Target with window.opener Access. Skor CVSS 3.1 4.1 (Medium) menurut github.com.

Deskripsi (NVD)

PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. From 2.1.0 until 4.14.1, PILOS does not send a Cross-Origin-Opener-Policy response header, so pages opened by PILOS via a link that opens a new browsing context (e.g., target="_blank") retain a window.opener reference back to the originating PILOS tab. A malicious destination page reached this way can use window.opener to navigate or manipulate the original PILOS tab, a technique known as reverse tabnabbing, potentially redirecting an authenticated user to a phishing page that mimics PILOS. This issue is fixed in version 4.14.1.

Rincian

Terbit di NVD

6 Agustus 2026

Terakhir diubah

10 September 2026

Status NVD

Deferred

CVSS 3.1

4.1 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1022: Use of Web Link to Untrusted Target with window.opener Access

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 20,2% 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/THM-Health/PILOS/commit/b50f2bd07c4f4a7d6a9981578238ae3579275d81
• https://github.com/THM-Health/PILOS/releases/tag/v4.14.1
• https://github.com/THM-Health/PILOS/security/advisories/GHSA-j4wr-p8gh-xrw5