// For flags

CVE-2021-32683

XSS through createObjectURL

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

wire-webapp is the web version of Wire, an open-source messenger. A cross-site scripting vulnerability exists in wire-webapp prior to version 2021-06-01-production.0. If a user is instructed to open an image in a new tab (right click -> open in new tab, or copy the URL and paste it in the URL bar), an the image payload is executed on the domain hosting the app (app.wire.com). In particular, if an image contains malicious code in addition to the actual picture, this code is executed on app.wire.com. This allows the attacker to fully control the user account. The vulnerability was patched in version 2021-06-01-production.0. As a workaround, users should not try to open image URLs.

wire-webapp es la versión web de Wire, un mensajero de código abierto. Se presenta una vulnerabilidad de tipo cross-site scripting en wire-webapp antes del 01-06-2021-production.0. Si un usuario es instruido para abrir una imagen una nueva pestaña (clic derecho -) abrir en nueva pestaña, o copiar la URL y pegarla en la barra de URL), es ejecutado una carga útil de la imagen el dominio que aloja la aplicación (app.wire.com). En particular, si una imagen contiene código malicioso además de la imagen real, este código es ejecutado en app.wire.com. Esto permite al atacante controlar completamente la cuenta del usuario. La vulnerabilidad fue parcheada en versiones del 01-06-2021-production.0. Como solución, los usuarios no deberían intentar abrir las URL de las imágenes

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-05-12 CVE Reserved
  • 2021-06-15 CVE Published
  • 2024-02-29 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Wire
Search vendor "Wire"
 Wire-webapp
Search vendor "Wire" for product "Wire-webapp"
 < 2021-06-01
Search vendor "Wire" for product "Wire-webapp" and version " < 2021-06-01"
-
Affected