Description
ownCloud Server before 7.0.8, 8.0.x before 8.0.6, and 8.1.x before 8.1.1 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to apps/calendar/export.php.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | owncloud | 7.0.4+dfsg-4~deb8u3 | DSA-3373-1 |
Advisories 1
- DSA-3373-1 owncloud - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-3373 vendor-advisory
- https://owncloud.org/security/advisory/?id=oc-sa-2015-015