A php-horde-mime-viewer security update has been released for Debian GNU/Linux 9 LTS to address a potential XSS vulnerability.

DLA 3045-1: php-horde-mime-viewer security update

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Debian LTS Advisory DLA-3045-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
June 06, 2022   https://wiki.debian.org/LTS
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Package : php-horde-mime-viewer
Version : 2.2.1-1+deb9u1
CVE ID : CVE-2022-26874

It was discovered that there was a potential XSS vulnerability in
php-horde-mime-viewer, a MIME viewer library for the Horde groupware
platform.

For Debian 9 "Stretch", this problem has been fixed in version
2.2.1-1+deb9u1.

We recommend that you upgrade your php-horde-mime-viewer packages.

For the detailed security status of php-horde-mime-viewer please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/php-horde-mime-viewer

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