CVE-2015-4456: ownCloud Desktop Client

Low severity, CVSS 2.6. EPSS: 0.8% chance of exploitation in the next 30 days.

ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.

Affected products

• ownCloud ownCloud Desktop Client: up to and including 1.8.1

Published 2015-10-26. Last modified 2026-06-17.