// For flags

CVE-2021-23976

Gentoo Linux Security Advisory 202104-10

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Cuando se acepta una intención maliciosa de otras aplicaciones instaladas, Firefox para Android aceptó manifiestos de rutas de archivos arbitrarias y permitió declarar manifiestos de aplicaciones web para otros orígenes.&#xa0;Esto podría usarse para conseguir acceso a pantalla completa para la suplantación de la interfaz de usuario y también podría conllevar a ataques de origen cruzado en sitios web específicos.&#xa0;Nota: Este problema es diferente de CVE-2020-26954 y solo afecta a Firefox para Android.&#xa0;Otros sistemas operativos no están afectados.&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 86

Multiple vulnerabilities have been found in Mozilla Firefox, the worst of which could result in the arbitrary execution of code. Versions less than 88.0 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-13 CVE Reserved
  • 2021-02-26 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-12-31 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-1021: Improper Restriction of Rendered UI Layers or Frames
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
Firefox
Search vendor "Mozilla" for product "Firefox"
< 86.0
Search vendor "Mozilla" for product "Firefox" and version " < 86.0"
android
Affected