Threat actors have been exploiting a vulnerability in the Roundcube Webmail client to target government organizations in the Commonwealth of Independent States (CIS) region, the successor of the ...

CISA flagged two Roundcube Webmail vulnerabilities as actively exploited in attacks and ordered U.S. federal agencies to patch them within three weeks. Roundcube Webmail is a web-based email client ...

ESET Research has been closely tracking the cyberespionage operations of Winter Vivern for more than a year and, during our routine monitoring, we found that the group began exploiting a zero-day XSS ...