ByteOS Network

NVD Vulnerability Details :

CVE-2026-48843

Received

Source-cve@mitre.org

Published At-25 May, 2026 | 20:16

Updated At-25 May, 2026 | 20:16

Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16,and 1.7.x before 1.7.1 has Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. The issue stems from an insufficient fix for CVE-2026-35540.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Type: Secondary

Version: 3.1

Base score: 7.2

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-918	Primary	cve@mitre.org

CWE ID: CWE-918

Type: Primary

Source: cve@mitre.org

References

Hyperlink	Source	Resource
https://github.com/roundcube/roundcubemail/commit/ab96c88bfd888866ec5e02190b19618db283923a	cve@mitre.org	N/A
https://github.com/roundcube/roundcubemail/commit/cb3fc9041e91640ba9ba49ee7b2147c176ebf5a1	cve@mitre.org	N/A
https://github.com/roundcube/roundcubemail/releases/tag/1.6.16	cve@mitre.org	N/A
https://github.com/roundcube/roundcubemail/releases/tag/1.7.1	cve@mitre.org	N/A
https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1	cve@mitre.org	N/A