CVE-2026-62643 | In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, i… | CVSS 7.2 HIGH

Description

In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, 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. NOTE: this issue exists because of insufficient fixes for CVE-2026-35540 and CVE-2026-48843.

Metadata

CVE ID: CVE-2026-62643
State: PUBLISHED
Assigner: mitre
Reserved: 2026-07-14 15:51 UTC
Published: 2026-07-14 15:51 UTC
Last updated: 2026-07-14 17:17 UTC
Primary CWE: CWE-918
CWE-918 Server-Side Request Forgery (SSRF)
Vendor / Product: Roundcube / Webmail
Sources: cve.org · NVD

Severity & Metrics

7.2 HIGH CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Roundcube	Webmail	—	1.6.0 < 1.6.17, 1.7.0 < 1.7.2

Weakness (CWE)

CWE	Source	Description
CWE-918	cna	CWE-918 Server-Side Request Forgery (SSRF)

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.2	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References (5)