CVE-2026-75003

SVG FuncIRI URL Evades Remote Image Blocking in Roundcube Webmail

Published Aug 17, 2026 CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed
Description
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG image could evade the remote image blocking, which may lead to information disclosure or privilege escalation.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4760-1 roundcube security update
Debian DSA Debian DSA DSA-6479-1 roundcube security update
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title SVG FuncIRI URL Evades Remote Image Blocking in Roundcube Webmail
Type Values Removed Values Added
Description In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG image could evade the remote image blocking, which may lead to information disclosure or privilege escalation.
First Time appeared Roundcube
Roundcube webmail
Weaknesses CWE-669
CPEs cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
Vendors & Products Roundcube
Roundcube webmail
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 18, 2026, 3:55 AM
Reserved
Aug 17, 2026, 12:50 PM
Status
Analyzed
Published
Aug 17, 2026, 1:16 PM
Modified
Sep 10, 2026, 7:18 PM