Debian Security Advisory

DLA-2351-1 php-horde-kronolith -- LTS security update

Date Reported:
29 Aug 2020
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 909737.
In Mitre's CVE dictionary: CVE-2017-16906.
More information:

In Horde Groupware, there has been an XSS vulnerability that could be exploited via the URL field in a "Calendar -> New Event" action.

For Debian 9 stretch, this problem has been fixed in version 4.2.19-1+deb9u2.

We recommend that you upgrade your php-horde-kronolith packages.

For the detailed security status of php-horde-kronolith please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: