CVE-2026-114729
Published:October 22, 2026
Updated:October 22, 2026
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass. rcube_washtml inspected the SVG SMIL animation attributes "to", "from" and values for URIs, but not "by"; so markup such as in an HTML message caused remote content to be loaded without the user's consent, disclosing the client IP address and confirming that the message was opened. Upstream fixed this in the commit “Fix remote-content blocker bypass via SVG SMIL "by" attribute”.
Affected Packages
https://github.com/roundcube/roundcubemail.git (GITHUB):
Affected version(s) >=1.7-beta <1.7.5Fix Suggestion:
Update to version 1.7.5https://github.com/roundcube/roundcubemail.git (GITHUB):
Affected version(s) >=1.6-beta <1.6.20Fix Suggestion:
Update to version 1.6.20roundcube/roundcubemail (PHP):
Affected version(s) >=1.7-beta <1.7.5Fix Suggestion:
Update to version 1.7.5Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incomplete List of Disallowed Inputs
EPSS
Base Score:
0.38