CVE-2021-23976

Katalog CVE

CVSS 8.1 · High EPSS 1,1%

Kerentanan Improper Restriction of Rendered UI Layers or Frames pada mozilla firefox. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites. Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox < 86.

Rincian

Terbit di NVD

26 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1021: Improper Restriction of Rendered UI Layers or Frames

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 64,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.mozilla.org/show_bug.cgi?id=1684627 issue tracking · permissions required · advisory vendor
• https://www.mozilla.org/security/advisories/mfsa2021-07/ release notes · advisory vendor
• https://security.gentoo.org/glsa/202104-10 advisory pihak ketiga