CVE-2026-25916
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
3Description
Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13, when "Block remote images" is used, does not block SVG feImage.
Analysis
Roundcube Webmail versions before 1.5.13 and 1.6.x before 1.6.13 fail to block SVG feImage elements when the "Block remote images" security feature is enabled, allowing attackers to bypass the protection and load remote content. This remote image bypass could enable tracking, information disclosure, or facilitate phishing attacks against users who rely on this feature to prevent remote content loading. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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