An issue was discovered in the selinux-policy (aka Reference Policy) package 3.14 through 2020-08-24 because the .config/Yubico directory is mishandled. Consequently, when SELinux is in enforced mode, pam-u2f is not allowed to read the user's U2F configuration file. If configured with the nouserok option (the default when configured by the authselect tool), and that file cannot be read, the second factor is disabled. An attacker with only the knowledge of the password can then log in, bypassing 2FA.
The Sociable WordPress plugin through 4.3.4.1 does not sanitise or escape some of its settings before outputting them in the admins dashboard, allowing high privilege users to perform Cross-Site Scripting attacks against other users even when the unfiltered_html capability is disallowed
An authenticated user can upload an XML file containing an XSS via the ITSM module of EyesOfNetwork 5.3.11, resulting in a stored XSS.
The PdfBook extension through 2.0.5 before b07b6a64 for MediaWiki allows command injection via an option.