---
id: CVE-2026-75003
title: >-
  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.
summary: >-
  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.
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-669
vendor: roundcube
product: webmail
affected:
  - 'webmail >= 1.6.0, < 1.6.18'
  - 'webmail >= 1.7.0, < 1.7.3'
patched:
  - webmail 1.7.3
published: '2026-08-17'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T19:18:27.853'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75003'
references:
  - url: >-
      https://github.com/roundcube/roundcubemail/commit/1cebea03474305d9f75a9a33d30880d290b5591b
    label: cve@mitre.org
  - url: >-
      https://github.com/roundcube/roundcubemail/commit/440277c32e6d84f3d116153af1cc8454361a8a56
    label: cve@mitre.org
  - url: 'https://github.com/roundcube/roundcubemail/releases/tag/1.6.18'
    label: cve@mitre.org
  - url: 'https://github.com/roundcube/roundcubemail/releases/tag/1.7.3'
    label: cve@mitre.org
  - url: 'https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-17T00:00:00+00:00'
ingestedAt: '2026-09-13T11:08:06.822Z'
epss: 0.00578
epssPercentile: 0.45192
---

## Overview

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.

## Affected

- `webmail >= 1.6.0, < 1.6.18`
- `webmail >= 1.7.0, < 1.7.3`

## Remediation

Upgrade past the affected range:

- `webmail 1.7.3`