Roundcube 1.7.1 → 1.7.5

Breaking changes

None in the release notes.

Security changes

• security Fix SSRF filter (is_local_url()) bypass via NAT64 64:ff9b::/96, reported by dizconnect. in 1.7.5
• security Fix CSRF validation bypass in the mark-as-junk action, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5. in 1.7.5
• security Fix XSS issue in handling of password driver error responses, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5. in 1.7.5
• security Security: Fix IMAP command injection via CRLF in _uid parameter of mail/headers and mail/viewsource action in 1.7.5
• security Security: Fix bug where an alias login wasn't qualified by IMAP host in 1.7.5
• security Security: Add a size limit to the CSS proxy content processing in 1.7.5
• security Security: Fix SSRF filter (is_local_url()) bypass via NAT64 64:ff9b::/96 in 1.7.5
• security Security: Fix remote content blocking bypass via SVG SMIL by attribute in 1.7.5
• security Security: Fix remote content blocking bypass via CSS escapes in FuncIRI attributes (again) in 1.7.5
• security Security: Fix passing potentally unsafe attachment content into ImageMagick on image resize in 1.7.5
• security Security: Fix mail header injection via the From display-name in the Bounce (resend) action in 1.7.5
• security Security: Fix mail header injection via References/In-Reply-To/Message-ID/From parameters in 1.7.5
• security Security: Fix object injection primitive in rcube_session::unserialize() via "!"-prefixed session keys in 1.7.5
• security Security: Fix ImageMagick resource limits bypass by GD fallback during thumbnail generation in 1.7.5
• security Security: Fix CSS scoping bypass in HTML messages using at-rules in 1.7.5
• security Security: Fix bug where deprecated action aliases bypassed disabled_actions setting in 1.7.5
• security Security: Fix IMAP command injection via CRLF in _flag parameter of mail/mark action in 1.7.5
• security Security: Fix CSRF validation bypass in the mark-as-junk action in 1.7.5
• security Security: Fix XSS issue in handling of password driver error responses in 1.7.5
• security Security: Fix mail header injection via subject of a message forwarded as attachment in 1.7.5
• security Security: Fix mail header injection via media type in an inline image data URI in 1.7.5
• security Security: Fix bug where Password Modoboa driver could change password for another account in 1.7.5
• security Security: Fix unsafe use of a login name in SquirrelMail import file path in 1.7.5
• security Fix zero-click stored XSS via TNEF MIME tag injection in the attachment URL, reported by nakko in 1.7.4
• security Fix XSS in the HTML editor using text/enriched part content, reported by Joshua Rogers in 1.7.4
• security Fix SSRF bypass in Roundcube CSS proxy via hexadecimal IPv6-mapped IPv4 addresses, reported by faceless0x7 and Harish Annavisamy in 1.7.4
• security Security: Fix CSS declaration smuggling via un-encoded ampersand emission in 1.7.4
• security Security: Fix CSS property injection via body background attribute in 1.7.4
• security Security: Fix email header injection via bare CR in the subject field in 1.7.4
• security Security: Fix email header injection via C-escape \r in the recipient display name in 1.7.4
• security Security: Fix email header injection via identity's organization field in 1.7.4
• security Security: Fix zero-click stored XSS via TNEF MIME tag injection in the attachment URL in 1.7.4
• security Security: Fix XSS in the HTML editor using text/enriched part content in 1.7.4
• security Security: Fix cross-user access in contact group membership (add/remove) in the SQL address book in 1.7.4
• security Security: Fix is_local_url() bypass via trailing-dot FQDN in stylesheet URL in 1.7.4
• security Security: Fix remote content blocking bypass via CSS escapes in FuncIRI attributes in 1.7.4
• security Security: Fix remote-content blocker bypass via SVG SMIL src animation in 1.7.4
• security Security: Fix SSRF bypass in Roundcube CSS proxy via hexadecimal IPv6-mapped IPv4 addresses in 1.7.4
• 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 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

Deprecations

• deprecated Fix bug where deprecated action aliases bypassed disabled_actions setting, reported by Squirt1e, Atum, N0b0dy, and Gh0u1L5. in 1.7.5

Every release in between