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NVD Vulnerability Details :
CVE-2026-35539
Analyzed
More InfoOfficial Page
Source-cve@mitre.org
View Known Exploited Vulnerability (KEV) details
Published At-03 Apr, 2026 | 05:16
Updated At-07 Apr, 2026 | 20:53

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.1MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Type: Secondary
Version: 3.1
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CPE Matches
Roundcube Webmail Project
roundcube
>>webmail>>Versions before 1.5.14(exclusive)
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
Roundcube Webmail Project
roundcube
>>webmail>>Versions from 1.6.0(inclusive) to 1.6.14(exclusive)
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-79Primarycve@mitre.org
CWE ID: CWE-79
Type: Primary
Source: cve@mitre.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/roundcube/roundcubemail/commit/10a6d1fa8acac85c727b0a6ae4a6642bfa27bea1cve@mitre.org
Patch
https://github.com/roundcube/roundcubemail/commit/1b30edf5369668c92fe91dae3d52e477c808aa4fcve@mitre.org
Patch
https://github.com/roundcube/roundcubemail/commit/d742954ccbcdee7020f8f2e7c49ce0fca5a0efabcve@mitre.org
Patch
https://github.com/roundcube/roundcubemail/releases/tag/1.5.14cve@mitre.org
Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.6.14cve@mitre.org
Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5cve@mitre.org
Release Notes
https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14cve@mitre.org
Vendor Advisory
Hyperlink: https://github.com/roundcube/roundcubemail/commit/10a6d1fa8acac85c727b0a6ae4a6642bfa27bea1
Source: cve@mitre.org
Resource:
Patch
Hyperlink: https://github.com/roundcube/roundcubemail/commit/1b30edf5369668c92fe91dae3d52e477c808aa4f
Source: cve@mitre.org
Resource:
Patch
Hyperlink: https://github.com/roundcube/roundcubemail/commit/d742954ccbcdee7020f8f2e7c49ce0fca5a0efab
Source: cve@mitre.org
Resource:
Patch
Hyperlink: https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
Source: cve@mitre.org
Resource:
Release Notes
Hyperlink: https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
Source: cve@mitre.org
Resource:
Vendor Advisory
Change History
0Changes found
Details not found