<![CDATA[🔴 Critical: Hackers now exploit critical Roundcube flaw in code injection attacks]]>The Canadian Centre for Cyber Security has warned that a high-severity vulnerability in Roundcube Webmail, patched back in May, is now being actively exploited in the wild. The flaw enables code injection attacks against vulnerable installations.

Administrators running Roundcube should treat this as urgent: the patch has been available since May, yet exploitation is ongoing, which suggests many instances remain unpatched. Code injection of this kind can allow attackers to execute arbitrary code on the mail server, making it a serious risk for organizations that expose webmail to the internet.

Given that the article does not specify a CVE identifier for this flaw, refer to the vendor's May security advisory and patch release for the exact fix rather than relying on third-party summaries. Verify your Roundcube version against the patched release and apply the update immediately if you have not already done so.

  • Check your current Roundcube version against the vendor's patched release from May
  • Apply the latest security update without delay
  • Restrict or monitor external access to webmail interfaces where possible
  • Review logs for suspicious activity on mail servers running unpatched versions

If your organization runs Roundcube, confirm whether the May patch was deployed and audit for any signs of compromise.

Source: BleepingComputer

Has your organization already applied the May Roundcube patch, or are you still working through the rollout?

]]>https://xploitlk.com/topic/451/critical-hackers-now-exploit-critical-roundcube-flaw-in-code-injection-attacksRSS for NodeTue, 27 Oct 2026 10:35:57 GMTThu, 24 Sep 2026 16:30:23 GMT60