EUVD-2026-18587

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This may lead to information disclosure or access-control bypass...

EUVD-2026-18591

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Insufficient Cascading Style Sheets CSS sanitization in HTML e-mail messages may lead to a fixed-position mitigation bypass via the use of !important...

Roundcube Webmail: Insufficient HTML attachment sanitization in preview mode

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment...

CVE-2026-35542

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted background attribute of a BODY element in an e-mail message. This may lead to information disclosure or access-control bypass...

CVE-2026-35541

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password...

CVE-2026-35539

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment...

PT-2026-29978

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. XSS exists because of insufficient HTML attachment sanitization in preview mode. A victim must preview a text/html attachment...

Roundcube Webmail 安全漏洞

Roundcube Webmail is an open-source browser-based IMAP client developed by Roundcube. It supports address book management, information search, spelling checking, and more. Versions of Roundcube Webmail prior to 1.5.14 and 1.6.14 contained security vulnerabilities. These vulnerabilities stemmed fr...

Roundcube Webmail 安全漏洞

Roundcube Webmail is an open-source browser-based IMAP client developed by Roundcube. It supports address book management, information search, spelling checking, and more. Versions of Roundcube Webmail prior to 1.5.14 and 1.6.14 contained security vulnerabilities. These vulnerabilities stemmed fr...