Vulnerability Details CVE-2026-75003
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 34.7%
CVSS Severity
CVSS v3 Score 5.8
References
- https://github.com/roundcube/roundcubemail/commit/1cebea03474305d9f75a9a33d30880d290b5591b
- https://github.com/roundcube/roundcubemail/commit/440277c32e6d84f3d116153af1cc8454361a8a56
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.18
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.3
- https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
Products affected by CVE-2026-75003
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cpe:2.3:a:roundcube:webmail:1.6.0
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cpe:2.3:a:roundcube:webmail:1.6.1
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cpe:2.3:a:roundcube:webmail:1.6.10
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cpe:2.3:a:roundcube:webmail:1.6.11
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cpe:2.3:a:roundcube:webmail:1.6.12
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cpe:2.3:a:roundcube:webmail:1.6.13
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cpe:2.3:a:roundcube:webmail:1.6.14
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cpe:2.3:a:roundcube:webmail:1.6.15
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cpe:2.3:a:roundcube:webmail:1.6.16
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cpe:2.3:a:roundcube:webmail:1.6.17
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cpe:2.3:a:roundcube:webmail:1.6.2
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cpe:2.3:a:roundcube:webmail:1.6.3
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cpe:2.3:a:roundcube:webmail:1.6.4
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cpe:2.3:a:roundcube:webmail:1.6.5
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cpe:2.3:a:roundcube:webmail:1.6.6
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cpe:2.3:a:roundcube:webmail:1.6.7
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cpe:2.3:a:roundcube:webmail:1.6.8
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cpe:2.3:a:roundcube:webmail:1.6.9
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cpe:2.3:a:roundcube:webmail:1.7.0
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cpe:2.3:a:roundcube:webmail:1.7.1
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cpe:2.3:a:roundcube:webmail:1.7.2