CVE-2026-35542

MEDIUM

Roundcube Webmail < 1.5.14 - Information Disclosure

Title source: rule

Description

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.

References (7)

https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14

https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5

https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0

https://github.com/roundcube/roundcubemail/releases/tag/1.6.14

https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8

https://github.com/roundcube/roundcubemail/releases/tag/1.5.14

https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad

View Patch ZIP pw:eip

Scores

CVSS v3 5.3

EPSS 0.0004

EPSS Percentile 13.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-669

Status published

Products (4)

roundcube/roundcubemail 1.7-beta - 1.7-rc5Packagist

Roundcube/Webmail < 1.5.14

roundcube/webmail < 1.5.14

Roundcube/Webmail 1.6.0 - 1.6.14

Published Apr 03, 2026

Tracked Since Apr 03, 2026