CVE-2026-35542

MEDIUM EPSS 32.1%
Published Apr 3, 20262mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Apr 3, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
32.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-669

Affected Products 2

VendorProductVersionRange
roundcubewebmail* <1.5.14
roundcubewebmail*≥1.6.0  –  <1.6.14

References 7

  • github.com https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad
    Patch
  • github.com https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0
    Patch
  • github.com https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8
    Patch
  • github.com https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
    Release Notes
  • github.com https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
    Release Notes
  • github.com https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
    Release Notes
  • roundcube.net https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
    Vendor Advisory

Remediation

  • github.com https://github.com/roundcube/roundcubemail/commit/e052328e3dc75f13adc2e314eaa4096ac21084ad
    Patch
  • github.com https://github.com/roundcube/roundcubemail/commit/fd0e98178db5c73eaa93d005b561874923f9b0f0
    Patch
  • github.com https://github.com/roundcube/roundcubemail/commit/fde14d01adc9f37893cd82b635883e516ed453f8
    Patch