EUVD-2026-18581
GHSA-x4q5-8j5g-hpjc
6.1
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Lifecycle Timeline
4
Patch Released
Apr 04, 2026 - 08:30 nvd
Patch available
EUVD ID Assigned
Apr 03, 2026 - 04:30 euvd
EUVD-2026-18581
Analysis Generated
Apr 03, 2026 - 04:30 vuln.today
CVE Published
Apr 03, 2026 - 03:39 nvd
MEDIUM 6.1
Tags
Description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment.
Analysis
Cross-site scripting (XSS) in Roundcube Webmail before versions 1.5.14 and 1.6.14 allows remote attackers to inject malicious scripts via insufficient HTML sanitization in text/html attachment preview mode. An authenticated user must preview a malicious text/html attachment to trigger the vulnerability, enabling attackers to steal session cookies, redirect users, or perform actions on behalf of the victim. …
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Priority Score
31
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: 0
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External POC / Exploit Code
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