Vulnerability DatabaseCVE-2026-75003
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CVE-2026-75003
Published:August 17, 2026
Updated:September 01, 2026
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 Packages
https://github.com/roundcube/roundcubemail.git (GITHUB):
Affected version(s) >=v0.1-beta2 <1.6.18
Fix Suggestion:
Update to version 1.6.18
https://github.com/roundcube/roundcubemail.git (GITHUB):
Affected version(s) >=1.7.0 <1.7.3
Fix Suggestion:
Update to version 1.7.3
Related Resources (7)
https://github.com/roundcube/roundcubemail/commit/440277c32e6d84f3d116153af1cc8454361a8a56
https://github.com/roundcube/roundcubemail/releases/tag/1.7.3
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75003.json
https://github.com/roundcube/roundcubemail/releases/tag/1.6.18
https://nvd.nist.gov/vuln/detail/CVE-2026-75003
https://github.com/roundcube/roundcubemail/commit/1cebea03474305d9f75a9a33d30880d290b5591b
https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Resource Transfer Between Spheres
CWE-669
EPSS
Base Score:
0.31