Arch Linux Security Advisory ASA-201610-4 ========================================= Severity: Medium Date : 2016-10-07 CVE-ID : CVE-2016-7966 Package : kcoreaddons Type : insufficient validation Remote : Yes Link : https://wiki.archlinux.org/index.php/CVE Summary ======= The package kcoreaddons before version 5.26.0-2 is vulnerable to insufficient validation. Resolution ========== Upgrade to 5.26.0-2. # pacman -Syu "kcoreaddons>=5.26.0-2" The problem has been fixed upstream but no release is available yet. Workaround ========== None. Description =========== Through a malicious URL that contained a quote character it was possible to inject HTML code in KMail's plain text viewer. Due to the parser used on the URL it was not possible to include the equal sign (=) or a space into the injected HTML, which greatly reduces the available HTML functionality. Although it is possible to include an HTML comment indicator to hide content. Impact ====== A remote attacker is able to inject HTML code in KMail's plain text viewer. References ========== https://www.kde.org/info/security/advisory-20161006-1.txt http://seclists.org/oss-sec/2016/q4/23 https://access.redhat.com/security/cve/CVE-2016-7966