Roundcube 1.6.21 → 1.7.3

Breaking changes

• breaking Dropped support for PHP < 8.1. in 1.7.0
• breaking Dropped support for Internet Explorer. in 1.7.0
• breaking Dropped support for MS SQL Server and Oracle. in 1.7.0
• breaking public_html/ entry-point made mandatory, all static resources are served via public_html/static.php. in 1.7.0
• breaking Removed apc cache driver (replaced by apcu cache driver). in 1.7.0
• breaking Changed smtp_log option default value to false. in 1.7.0
• breaking Removed contact_search_name option in favor of contactlist_name_template. in 1.7.0
• breaking Replaced session property changed by expires_at. in 1.7.0
• breaking Removed the (insecure) virtualmin password driver. in 1.7.0

Security changes

• security Fixes CVE-2026-74997: 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. This issue o… in 1.7.3
• security Fixes CVE-2026-74998: 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 sc… in 1.7.3
• security Fixes CVE-2026-75002: 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 inject… in 1.7.3
• security Fixes CVE-2026-75010: 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… in 1.7.3
• security Fixes CVE-2026-75006: 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 styles… in 1.7.3
• security Fixes CVE-2026-75000: 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 infor… in 1.7.3
• security Fixes 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 o… in 1.7.3
• security Fixes CVE-2026-75007: 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 privileg… in 1.7.3
• security Fixes CVE-2026-74999: 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. in 1.7.3
• security Fixes CVE-2026-75004: 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. This issue… in 1.7.3
• security Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets, reported by Dmytro Ivanenko in 1.7.3
• security Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url() check, reported by Milan Hoppe in 1.7.3
• security Fix RCE via cmd_learn driver of markasjunk plugin, reported by nept1337 in 1.7.3
• security Fix stored XSS in "Add to address book" action, reported by Paulos Yibelo from pwn.ai in 1.7.3
• security Security: Add basic validation for content proxied by the css proxy in 1.7.3
• security Security: Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets in 1.7.3
• security Security: Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading is_local_url() check in 1.7.3
• security Security: Fix remote content blocking bypass via unclosed url() in a FuncIRI attribute in 1.7.3
• security Security: Fix LDAP filter injection via unescaped %u/%fu/%d substitution into the search_filter in 1.7.3
• security Security: Fix arbitrary Sieve script injection via a filter rule name bypassing managesieve_disabled_actions in 1.7.3
• security Security: Fix RCE via cmd_learn driver of markasjunk plugin in 1.7.3
• security Security: Fix IMAP command injection via mail search and LITERAL+ byte-count desynchronization in 1.7.3
• security Security: Fix password's modoboa driver leak of an authentication token to a user-controlled host in 1.7.3
• security Security: Fix stored XSS in "Add to address book" action in 1.7.3
• security Security: Fix HTML/CSS sanitization bypass via SVG animate by attribute. in 1.7.3
• security Fixes CVE-2026-62643: In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if styles… in 1.7.2
• security Fixes CVE-2026-62644: In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the password plugin of the Roundcube Webmail was subject to username spoofing via session data, which could lead to account takeover. in 1.7.2
• security Fixes CVE-2026-62641: In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, the TNEF decoder was subject to denial of service via a crafted compressed-RTF size. in 1.7.2
• security Fixes CVE-2026-62642: In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment. in 1.7.2
• security Fix various vulnerabilities in the password plugin using session-injected username, reported by Glendaenri and peppersghost. in 1.7.2
• security Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page CVE-2026-54432, reported by Bohdan Kurinnoy, Samsung R&D Instit in 1.7.2
• security Fix SSRF bypass via specific local address URLs - two new cases, reported by Leenear. in 1.7.2
• security Fix zero-click stored XSS in plain-text rendering CVE-2026-54433, reported by Bohdan Kurinnoy, Samsung R&D Institute Ukraine (SRUKR). in 1.7.2
• security Security: Fix an infinite loop in TNEF (winmail.dat) decoder (#10193) in 1.7.2
• security Security: Fix various vulnerabilities in the password plugin using session-injected username in 1.7.2
• security Security: Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page CVE-2026-54432 in 1.7.2
• security Security: Fix SSRF bypass via specific local address URLs - two new cases in 1.7.2
• security Security: Fix zero-click stored XSS in plain-text rendering CVE-2026-54433 in 1.7.2
• security Security: Fix DoS via crafted compressed-RTF size in the TNEF (winmail.dat) file in 1.7.2
• security Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog, reported by Anand Jogawade (zazy) in 1.7.1
• security Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass, reported by skull in 1.7.1
• security Fix SSRF bypass via specific local address URLs in 1.7.1
• security Fix local/private URL fetch bypass when remote resources were not allowed, reported by Orange Cyberdefense Vulnerability Disclosure Team in 1.7.1
• security Fix code injection vulnerability - remove support for code evaluation in LDAP autovalues option, reported by Glendaenri in 1.7.1
• security Security: Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog in 1.7.1
• security Security: Fix CSS injection bypass in HTML sanitizer via SVG in 1.7.1
• security Security: Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass in 1.7.1
• security Security: Fix SSRF bypass via specific local address URLs in 1.7.1
• security Security: Fix bypass of remote image blocking via CSS var() in 1.7.1
• security Security: Fix local/private URL fetch bypass when remote resources were not allowed in 1.7.1
• security Security: Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass in 1.7.1
• security Security: Fix code injection vulnerability - remove support for code evaluation in LDAP autovalues option in 1.7.1

Every release in between