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Security updates 1.7.2 and 1.6.17 released
by Aleksander Machniak 05 Jul '26

05 Jul '26

We just published security updates to the 1.7 and 1.6 LTS versions of Roundcube Webmail. They both contain fixes for recently reported security vulnerabilities. Security fixes: - Fix an infinite loop in TNEF (winmail.dat) decoder (#10193), reported by stafra. - Fix various vulnerabilities in the password plugin using session-injected username, reported by Glendaenri and peppersghost. - Fix stored XSS via unescaped attachment MIME type on the attachment-validation warning page [CVE-2026-54432], reported by Bohdan Kurinnoy, Samsung R&D Institute Ukraine (SRUKR). - Fix SSRF bypass via specific local address URLs - two new cases, reported by Leenear. - Fix zero-click stored XSS in plain-text rendering [CVE-2026-54433], reported by Bohdan Kurinnoy, Samsung R&D Institute Ukraine (SRUKR). - Fix DoS via crafted compressed-RTF size in the TNEF (winmail.dat) file, reported by h0rk1p. See the full changelogs in the release notes on the Github download pages for the updated versions. https://github.com/roundcube/roundcubemail/releases/tag/1.7.2 https://github.com/roundcube/roundcubemail/releases/tag/1.6.17 We strongly recommend to update all productive installations of Roundcube 1.6.x and 1.7.x with this new versions. -- Alec

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Proposal: Send Later plugin for Roundcube
by Piotr Chyżyński 30 Jun '26

30 Jun '26

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disable the new MouseOverMenue
by aschwab＠schwartech.de 17 Jun '26

17 Jun '26

Dear all, in the newest Version a MouseOverMenue was integrated. For my usual workflow it bothers me quite a bit so I was searching were to disable it but could not find the option. Neither in the "settings" menue nor in the "config.inc.php" Does anybody know where to disable this new MouseOverMenue? Best, Arne

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date format question
by maintenance＠clearlytahoe.com 13 Jun '26

13 Jun '26

Hello, I'm a employee at Clearly Tahoe kayak rentals around Tahoe lake in California. I was wondering is there a way to format the date to reflect the local customs for presenting it (mm/dd/yy)? I did see that you can change the format for how it looks but not necessarily change the placement of day/month/year values. Please let me know is it possible to change the date format to month/day/year and where to do it since _settings>preferences>user interface_ deals only with the visual aspect not the actual formatting of the date. will appreciate any input and/or guidance how to address this. thank you, Radoslaw Jeziorski maintenance coordinator

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Security updates 1.7.1 and 1.6.16 released
by Aleksander Machniak 24 May '26

24 May '26

Here's the same message with corrected subject. Sorry about that. We just published security updates to the 1.7 and 1.6 LTS versions of Roundcube Webmail. They both contain fixes for recently reported security vulnerabilities. Security fixes: - Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog, reported by zazy - Fix CSS injection bypass in HTML sanitizer via SVG `<animate attributeName="style">`, reported by wooseokdotkim - Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass, reported by skull - Fix SSRF bypass via specific local address URLs - Fix local/private URL fetch bypass when remote resources were not allowed, reported by Orange Cyberdefense Vulnerability Disclosure Team - Fix bypass of remote image blocking via CSS var(), reported by Geame - Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass, reported by valent1 - Fix code injection vulnerability - remove support for code evaluation in LDAP `autovalues` option, reported by Glendaenri See the full changelogs in the release notes on the Github download pages for the updated versions 1.7.1 and 1.6.16. https://github.com/roundcube/roundcubemail/releases/tag/1.7.1 https://github.com/roundcube/roundcubemail/releases/tag/1.6.16 We strongly recommend to update all productive installations of Roundcube 1.6.x and 1.7.x with this new versions. -- Alec

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Security updates 1.5.13 and 1.6.13 released
by Aleksander Machniak 24 May '26

24 May '26

We just published security updates to the 1.7 and 1.6 LTS versions of Roundcube Webmail. They both contain fixes for recently reported security vulnerabilities. Security fixes: - Fix stored XSS/HTML/CSS injection in subject field of the draft restore dialog, reported by zazy - Fix CSS injection bypass in HTML sanitizer via SVG `<animate attributeName="style">`, reported by wooseokdotkim - Fix pre-auth SQL injection in virtuser_query plugin via preg_replace backslash escape bypass, reported by skull - Fix SSRF bypass via specific local address URLs - Fix local/private URL fetch bypass when remote resources were not allowed, reported by Orange Cyberdefense Vulnerability Disclosure Team - Fix bypass of remote image blocking via CSS var(), reported by Geame - Fix pre-auth arbitrary file delete via redis/memcache session poisoning bypass, reported by valent1 - Fix code injection vulnerability - remove support for code evaluation in LDAP `autovalues` option, reported by Glendaenri See the full changelogs in the release notes on the Github download pages for the updated versions 1.7.1 and 1.6.16. https://github.com/roundcube/roundcubemail/releases/tag/1.7.1 https://github.com/roundcube/roundcubemail/releases/tag/1.6.16 We strongly recommend to update all productive installations of Roundcube 1.6.x and 1.7.x with this new versions. -- Alec

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Roundcube Webmail 1.7.0 released
by Aleksander Machniak 11 May '26

11 May '26

This is the stable release of the next major version 1.7 of Roundcube Webmail. After almost four years of development we introduce a few breaking changes, some new features, and bring support for recent PHP versions. With automated code style and quality checks, removed code bloat and updated dependencies, we hope for even more codebase quality. Some noteworthy changes are: - Mandatory `public_html/` entry-point for HTTP servers, protecting all installations better. - Improved OAuth2/OIDC support (e.g. support for OIDC discovery, OIDC logout). - Markdown mail rendering and composing. - A quick actions mouse-over menu on the messages list. - Advanced mail search syntax. ## Breaking Changes - Dropped support for PHP < 8.1. - Dropped support for Internet Explorer. - Dropped support for MS SQL Server and Oracle. - `public_html/` entry-point made mandatory, all static resources are served via `public_html/static.php`. - Removed `apc` cache driver (replaced by `apcu` cache driver). - Changed `smtp_log` option default value to `false`. - Removed `contact_search_name` option in favor of `contactlist_name_template`. - Replaced session property `changed` by `expires_at`. - Removed the (insecure) virtualmin password driver. This release is considered stable and we encourage you to update your productive installations after carefully testing the upgrade scenario. With the release of Roundcube 1.7.0, the previous stable release branch 1.6.x changes into an LTS (low maintenance) mode which means it will only receive important security updates. The 1.5.x series is no longer supported and maintained. And don't forget to backup your data before installing it! You can download it from https://roundcube.net Cheers, Alec

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Security updates 1.6.15 and 1.5.15 (and 1.7-rc6) released
by Aleksander Machniak 29 Mar '26

29 Mar '26

We just published security updates to the 1.6 and 1.5 LTS versions of Roundcube Webmail, as well as a release candidate for coming 1.7. It provides fixes to some regressions introduced in the previous release as well a recently reported security vulnerability. ## Security fixes - SVG Animate FUNCIRI Attribute Bypass — Remote Image Loading via fill/filter/stroke, reported by class_nzm. See the full changelogs in the release notes on the Github download pages for the updated versions - https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc6 - https://github.com/roundcube/roundcubemail/releases/tag/1.6.15 - https://github.com/roundcube/roundcubemail/releases/tag/1.5.15 We strongly recommend to update your productive installations of Roundcube with this new versions. -- Alec

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Security updates 1.6.14 and 1.5.14 (and 1.7-rc5) released
by Aleksander Machniak 18 Mar '26

18 Mar '26

We just published security updates to the 1.6 and 1.5 LTS versions of Roundcube Webmail, as well as a release candidate for coming 1.7. They contain fixes for recently reported set of security vulnerabilities. ## Security fixes - Fix pre-auth arbitrary file write via unsafe deserialization in redis/memcache session handler, reported by y0us. - Fix bug where a password could get changed without providing the old password, reported by flydragon777. - Fix IMAP Injection + CSRF bypass in mail search, reported by Martila Security Research Team. - Fix remote image blocking bypass via various SVG animate attributes, reported by nullcathedral. - Fix remote image blocking bypass via a crafted body background attribute, reported by nullcathedral. - Fix fixed position mitigation bypass via use of !important, reported by nullcathedral. - Fix XSS issue in a HTML attachment preview, reported by aikido_security. - Fix SSRF + Information Disclosure via stylesheet links to a local network hosts, reported by Georgios Tsimpidas (aka Frey), Security Researcher at https://i0.rs/. See the full changelogs in the release notes on the Github download pages for the updated versions - https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5 - https://github.com/roundcube/roundcubemail/releases/tag/1.6.14 - https://github.com/roundcube/roundcubemail/releases/tag/1.5.14 We strongly recommend to update your productive installations of Roundcube with this new versions. -- Alec

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Roundcube webmail 1.7 RC4 released
by Pablo Zimdahl 13 Feb '26

13 Feb '26

We just published the fourth release candidate for the next major version 1.7 of Roundcube webmail. This release fixes two minor issues, it's mostly published to fix a file permission problem in the previous release v1.7-rc3. The changes are: - Ensure correct file permissions when building a release. - Installer: Fix broken link to download the created configuration file (#10092) The tarballs can be downloaded [from roundcube.net/download](https://roundcube.net/download/). Or directly from [the release page at github.com](https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc4). We believe it is production ready, but we recommend to test it on a separate environment. Migrate existing configs with either the `installto.sh` or the `update.sh` scripts. And don't forget to backup your data before installing it! Regards, Pablo -- Pablo Zimdahl Software Engineer oOo Nextcloud - Regain control over your data pablo.zimdahl(a)nextcloud.com nextcloud.com +49 711 25 24 28 90 Nextcloud GmbH Hauptmannsreute 44A, 70192 Stuttgart, Germany GF: Frank Karlitschek HRB 227086 (AG München) Regards, Pablo -- Pablo Zimdahl Software Engineer oOo Nextcloud - Regain control over your data pablo.zimdahl(a)nextcloud.com nextcloud.com +49 711 25 24 28 90 Nextcloud GmbH Hauptmannsreute 44A, 70192 Stuttgart, Germany GF: Frank Karlitschek HRB 227086 (AG München)

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