Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-54433

In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, there is Stored Cross-Site Scripting (XSS) via a crafted plain-text email message. The attacker-controlled JavaScript executes within the victim's authenticated session simply by opening or previewing the message (zero-click).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 19.6%
CVSS Severity
CVSS v3 Score 7.2
Products affected by CVE-2026-54433


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