// For flags

CVE-2021-32661

TechDocs object element script injection

Severity Score

7.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Backstage is an open platform for building developer portals. In versions of Backstage's Techdocs Plugin (`@backstage/plugin-techdocs`) prior to 0.9.5, a malicious internal actor can potentially upload documentation content with malicious scripts by embedding the script within an `object` element. This may give access to sensitive data when other users visit that same documentation page. The ability to upload malicious content may be limited by internal code review processes, unless the chosen TechDocs deployment method is to use an object store and the actor has access to upload files directly to that store. The vulnerability is patched in the `0.9.5` release of `@backstage/plugin-techdocs`.

Backstage es una plataforma abierta para construir portales para desarrolladores. En las versiones del plugin Techdocs de Backstage ("@backstage/plugin-techdocs") anteriores a versión 0.9.5, un actor interno malicioso puede potencialmente cargar contenido de documentación con scripts maliciosos insertando el script dentro de un elemento "object". Esto puede dar acceso a datos confidenciales cuando otros usuarios visiten esa misma página de documentación. La capacidad de subir contenido malicioso puede estar limitada por los procesos internos de revisión de código, a menos que el método de despliegue de TechDocs elegido sea usar un almacén de objetos y el actor tenga acceso a subir archivos directamente a ese almacén. La vulnerabilidad está parcheada en la versión "0.9.5" de "@backstage/plugin-techdocs"

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
Partial
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
  • 2021-06-03 CVE Published
  • 2024-02-17 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-434: Unrestricted Upload of File with Dangerous Type
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linuxfoundation
Search vendor "Linuxfoundation"
 \@backstage\/plugin-techdocs
Search vendor "Linuxfoundation" for product "\@backstage\/plugin-techdocs"
 < 0.9.5
Search vendor "Linuxfoundation" for product "\@backstage\/plugin-techdocs" and version " < 0.9.5"
node.js
Affected