VULNERABILITY INTELLIGENCE

CVE-2016-9459

CVSS score6.1 MEDIUM
EPSS probability1.49%
CISA KEVNot currently listed
Published2017-03-28
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are vulnerable to a log pollution vulnerability potentially leading to a local XSS. The download log functionality in the admin screen is delivering the log in JSON format to the end-user. The file was delivered with an attachment disposition forcing the browser to download the document. However, Firefox running on Microsoft Windows would offer the user to open the data in the browser as an HTML document. Thus any injected data in the log would be executed.

Weakness classification

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-209: Generation of Error Message Containing Sensitive Information

Primary references