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CVE-2026-54433

10.0 critical exploit SSVC exploitation: none Analyzed
NVD · CVE.org

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).

Fix

Public exploits 1

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 10.0 · roundcubeNVD modified 2026-10-24 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*

References 1