A php-horde security update has been released for Debian GNU/Linux 8 LTS

Package : php-horde
Version : 5.2.1+debian0-2+deb8u5
CVE ID : CVE-2019-12095

A vulnerability has been found in php-horde, the Horde Application
Framework, which may result in information disclosure via cross-site
scripting.

For Debian 8 "Jessie", this problem has been fixed in version
5.2.1+debian0-2+deb8u5.

We recommend that you upgrade your php-horde packages.

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