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).

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:roundcube:webmail::::::::
	cpe:2.3:a:roundcube:webmail::::::::

History

24 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En Roundcube Webmail antes de 1.6.17 y 1.7.x antes de 1.7.2, existe Cross-Site Scripting Almacenado (XSS) a través de un mensaje de correo electrónico de texto plano manipulado. El JavaScript controlado por el atacante se ejecuta dentro de la sesión autenticada de la víctima simplemente al abrir o previsualizar el mensaje (zero-click).

Information

Published : 2026-07-14 17:17

Updated : 2026-10-24 21:10

NVD link : CVE-2026-54433

Mitre link : CVE-2026-54433

CVE.ORG link : CVE-2026-54433

JSON object : View

Products Affected

roundcube

webmail

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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