A vulnerability, which was classified as critical, was found in WoWonder. Affected is the file /requests.php which is responsible to handle group messages. The manipulation of the argument group_id allows posting messages in other groups. It is possible to launch the attack remotely but it might require authentication. A video explaining the attack has been disclosed to the public.
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to check if the email signup configuration option is enabled when a user requests to switch from SAML to Email. This allows the user to switch their authentication mail from SAML to email and possibly edit personal details that were otherwise non-editable and provided by the SAML provider.
An issue has been discovered in GitLab EE affecting all versions starting from 12.5 before 17.1.6, all versions starting from 17.2 before 17.2.4, all versions starting from 17.3 before 17.3.1. Under certain conditions it may be possible to bypass the IP restriction for groups through GraphQL allowing unauthorised users to perform some actions at the group level.