Priority LOW 28
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the modoboa driver of the password plugin could leak a Modoboa API authentication token to a user-controlled host via crafted session data.
CVSS 3.1MEDIUM 6.4· Network · Low privileges · No interaction · EPSS 0.00285 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-669
Priority MEDIUM 40
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the LDAP search filter was subject to injection via unescaped %u/%fu/%d substitution, which may lead to information disclosure or privilege escalation.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00353 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-77
Priority LOW 32
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to loc…
CVSS 3.1MEDIUM 5.8· Network · No auth · No interaction · EPSS 0.00416 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-918
Priority LOW 20
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper rule name quoting could lead to managesieve_disabled_actions setting bypass via a crafted rule name in a Sieve script.
CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.00274 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-77
Priority MEDIUM 49
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.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00402 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-669
Priority LOW 36
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, mail search and LITERAL+ byte-count desynchronization could lead to information disclosure or privilege escalation via IMAP command injection.
CVSS 3.1HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.01356 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-77
Priority LOW 34
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper HTML/CSS sanitization of the SVG animate "by" attribute may lead to remote image blocking bypass, which in turn may lead to information disclosure or pr…
CVSS 3.1MEDIUM 5.8· Network · No auth · No interaction · EPSS 0.00346 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-669
Priority LOW 24
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the "Add to address book" action was subject to stored XSS.
CVSS 3.1MEDIUM 5.4· Network · Low privileges · User interaction · EPSS 0.0026 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-79
Priority LOW 32
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, responses from the CSS (Cascading Style Sheets) proxy were not validated, which may result in information disclosure or XSS (cross-site scripting) via MIME sniff…
CVSS 3.1HIGH 7.2· Network · No auth · No interaction · EPSS 0.00322 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-79
Priority MEDIUM 41
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the cmd_learn driver of the markasjunk plugin is subject to remote code execution via crafted placeholder replacement values.
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00784 · Published 2026-08-17 · Fixed in 1.6.18, 1.7.3 CWE-78