Vulnerability Details CVE-2026-35543
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via SVG content (with animate attributes) in an e-mail message. This may lead to information disclosure or access-control bypass.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.1%
CVSS Severity
CVSS v3 Score 5.3
References
- https://github.com/roundcube/roundcubemail/commit/1a63e01542bff42aaa71c00c4c279a09ef31f20c
- https://github.com/roundcube/roundcubemail/commit/39471343ee081ce1d31696c456a2c163462daae3
- https://github.com/roundcube/roundcubemail/commit/82ab5eca7b332fce7a174b2b987f0957a66377cd
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
- https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
- https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
Products affected by CVE-2026-35543
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cpe:2.3:a:roundcube:webmail:*
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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:1.6.2
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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