security advisorymoderateupdate
Alex Birnberg discovered a cross-site scripting (XSS) vulnerability in the Horde Application Framework, more precisely its Text Filter API. An attacker could take control of a user's mailbox by sending a crafted e-mail. . - ----------------------------------------------------------------------- Debian LTS Advisory DLA-2564-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Sylvain Beucler February 18, 2021 https://wiki.debian.org/LTS - ----------------------------------------------------------------------- Package : php-horde-text-filter Version : 2.3.5-1+deb9u1 CVE ID : CVE-2021-26929 Debian Bug : 982769 Alex Birnberg discovered a cross-site scripting (XSS) vulnerability in the Horde Application Framework, more precisely its Text Filter API. An attacker could take control of a user's mailbox by sending a crafted e-mail. CVE-2021-26929 An XSS issue was discovered in Horde Groupware Webmail Edition (where the Horde_Text_Filter library is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \x00\x00\x00 and \x01\x01\x01 interferes with XSS defenses. For Debian 9 stretch, this problem has been fixed in version 2.3.5-1+deb9u1. We recommend that you upgrade your php-horde-text-filter packages. For the detailed security status of php-horde-text-filter please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/php-horde-text-filter 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 . Identified XSS vulnerability within Horde Framework impacting email accounts, Debian suggests upgrading php-horde-text-filter packages.. php Horde Security,XSS Issue,Debian Security Updates. . Severity: Critical.LinuxSecurity.com Team
Feb 19, 2021
•Critical
Debian LTS