// For flags

CVE-2023-39955

Notes attachment render HTML in preview mode

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud Notes app version 4.8.0 contains a patch for the issue. No known workarounds are available.

Notes es una aplicación de toma de notas para Nextcloud, una plataforma en la nube de código abierto. A partir de la versión 4.4.0 y antes de la versión 4.8.0, al crear un archivo de notas con HTML, el contenido se muestra en la vista previa en lugar de ofrecer el archivo para descargar. La versión 4.8.0 de la aplicación Nextcloud Notes contiene un parche para este problema. No se conocen soluciones disponibles.

*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
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-08-07 CVE Reserved
  • 2023-08-10 CVE Published
  • 2024-09-11 EPSS Updated
  • 2024-10-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
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
Nextcloud
Search vendor "Nextcloud"
Notes
Search vendor "Nextcloud" for product "Notes"
>= 4.4.0 < 4.8.0
Search vendor "Nextcloud" for product "Notes" and version " >= 4.4.0 < 4.8.0"
nextcloud
Affected