ownCloud is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.
An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may help the attacker steal cookie-based authentication credentials and launch other attacks.
Information
ownCloud ownCloud 9.0.9
ownCloud ownCloud 9.0.5
ownCloud ownCloud 9.0.3
ownCloud ownCloud 9.0.2
ownCloud ownCloud 9.0.1
ownCloud ownCloud 8.2.6
ownCloud ownCloud 8.2.2
ownCloud ownCloud 9.1.2
ownCloud ownCloud 9.0.6
ownCloud ownCloud 9.0.4
ownCloud ownCloud 8.2.9
ownCloud ownCloud 8.2.7
ownCloud ownCloud 9.0.10
ownCloud ownCloud 8.2.12
Exploit
An attacker can exploit this issue by enticing an unsuspecting victim to follow a malicious URI.