CVE-2026-114729
Medium
Description
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”.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Roundcube Webmail
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-184CWE-184
How to fix
Update
- roundcube webmail1.6.20, 1.7.5 or later
Patches
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| roundcube webmail | 1.6.0 ≤ v < 1.6.20, 1.7.0 ≤ v < 1.7.5 | 1.6.20, 1.7.5 |
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