What’s Vulnerable › Vulnerabilities

CVE-2026-35545

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-03 · updated 2026-07-24
• Weakness: CWE-669

Description

An issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in an e-mail message. This may lead to information disclosure or access-control bypass. This involves the animate element with attributeName=fill/filter/stroke.

Affected products

• Roundcube Webmail: before 1.5.15; from 1.6.0 before 1.6.15 — fixed in 1.5.15, 1.6.15

How to fix

Upgrade to a fixed version: Roundcube Webmail 1.5.15, 1.6.15. Check the vendor advisory for mitigations.

References

• https://github.com/roundcube/roundcubemail/commit/7ad62de184368bf42c0f522d1aacc030f5ddcc46
• https://github.com/roundcube/roundcubemail/commit/9d18d524f3cc211003fc99e2e54eed09a2f3da88
• https://github.com/roundcube/roundcubemail/commit/fe1320b199d3a2f58351bb699c9ed4316e73221b
• https://github.com/roundcube/roundcubemail/releases/tag/1.5.15
• https://github.com/roundcube/roundcubemail/releases/tag/1.6.15
• https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc6
• https://roundcube.net/news/2026/03/29/security-updates-1.7-rc6-1.6.15-1.5.15

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