Established 2026Sunday, 25 October 2026
presents

The CloudySec Digest

“The wires, edited.”
← Front PageVulnerabilities Desk
Vulnerabilities

[NEU] [hoch] Roundcube Webmail: Mehrere Schwachstellen

New high-severity Roundcube flaws echo the webmail platform's history as a favoured APT target—European organisations still self-hosting it face renewed espionage risk.

Summary written by editorial AI · Source link below

Filed by CERT-Bund (BSI)1 min readRead at source ↗

Ein Angreifer kann mehrere Schwachstellen in Roundcube Webmail ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen oder andere, nicht näher spezifizierte Auswirkungen zu erreichen.

Editorial Analysis

Why it matters

Roundcube has been repeatedly weaponised in state-sponsored campaigns against European government and research targets; fresh high-severity flaws reopen that attack path.

What to do

Patch Roundcube immediately, enforce CSP headers, and consider migrating to a managed webmail service with stronger sandboxing.

Board brief

A webmail platform historically exploited in espionage campaigns has new high-severity vulnerabilities relevant to any organisation still self-hosting email.

Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.

Continue at the source
Read the full report at CERT-Bund (BSI)

External link — opens at CERT-Bund (BSI) in a new tab.

§
Continue with

More from the Vulnerabilities Desk