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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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-03 | Updated 2026-04-03 | Assigner mitre




MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-669 Incorrect Resource Transfer Between Spheres

Product status

Default status
unaffected

Any version before 1.5.14
affected

1.6.0 (semver) before 1.6.14
affected

References

roundcube.net/...3/18/security-updates-1.7-rc5-1.6.14-1.5.14

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

github.com/...ommit/fd0e98178db5c73eaa93d005b561874923f9b0f0

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

github.com/...ommit/fde14d01adc9f37893cd82b635883e516ed453f8

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

github.com/...ommit/e052328e3dc75f13adc2e314eaa4096ac21084ad

cve.org (CVE-2026-35542)

nvd.nist.gov (CVE-2026-35542)

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