CVE-2026-35542 MEDIUM

CVE-2026-35542

Vendor Roundcube
Product Webmail
Weakness CWE-669
Published April 3, 2026
Last update April 3, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This may lead to information disclosure or access-control bypass.

Key dates

02Disclosure timeline

April 3, 2026 CVE published
April 3, 2026 Record updated