CVE-2026-54432

MEDIUM

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

Title source: rule

Description

Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allows Stored Cross-Site Scripting (XSS). The issue occurs because the attachment MIME type is not properly escaped on the attachment-validation warning page.

References (1)

Core 1

Core References

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

Scores

CVSS v3 4.7

EPSS 0.0022

EPSS Percentile 12.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (2)

Roundcube/Webmail 1.6.0 - 1.6.17

Roundcube/Webmail 1.7.0 - 1.7.2

Published Jul 14, 2026

Tracked Since Jul 14, 2026