CVE-2026-54433

Published Jul 14, 2026

Last updated 9 days ago

Overview

Description
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).
Source
cve@mitre.org
NVD status
Analyzed
Products
webmail

Risk scores

CVSS 3.1

Type
Primary
Base score
10
Impact score
5.8
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Severity
CRITICAL

Weaknesses

cve@mitre.org
CWE-79

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.