PT-2026-76643 · Unknown · Roundcube Webmail

CVE-2026-75003

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Published

2026-08-17

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Updated

2026-08-18

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Roundcube Webmail versions prior to 1.6.18 Roundcube Webmail versions 1.7.x prior to 1.7.3
Description An unclosed url() in a FuncIRI attribute of an SVG image allows the evasion of remote image blocking. This flaw could potentially lead to privilege escalation or information disclosure.
Recommendations Update to version 1.6.18 or later. Update to version 1.7.3 or later.

Exploit

Fix

DoS

LPE

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Weakness Enumeration

Related Identifiers

CVE-2026-75003

Affected Products

Roundcube Webmail