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4.3

Nextcloud Server Calendar Event Name Exposure

CVE-2019-5449 · published 7 years ago
Summary

Nextcloud Server versions prior to 15.0.1 may leak confidential calendar event names. This could potentially expose sensitive information to unauthorized users. To protect your data, update to the latest version of Nextcloud Server.

What to do
  • Update nextcloud nextcloud_server to version 15.0.1 or later.
Affected software
VendorProductAffected versions
nextcloud nextcloud_server < 15.0.1
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
Original advisory text
A missing check in the Nextcloud Server prior to version 15.0.1 causes leaking of calendar event names when adding or modifying confidential or private events.
A missing check in the Nextcloud Server prior to version 15.0.1 causes leaking of calendar event names when adding or modifying confidential or private events.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
4.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-287Improper Authentication
CWE-862Missing Authorization
Timeline
Published30 Jul 2019
Updated3 Nov 2026
First seen7 Aug 2026
Sources
CVE-2019-5449 · OSV
CVE-2019-5449 · NVD
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