Description
Roundcube before 1.4.13 and 1.5.x before 1.5.2 allows XSS via an HTML e-mail message with crafted Cascading Style Sheets (CSS) token sequences.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | roundcube | 1.6.0+dfsg-1 | — |
| Debian 13 | roundcube | 1.6.0+dfsg-1 | — |
| Debian 12 | roundcube | 1.6.0+dfsg-1 | — |
| Debian 11 | roundcube | 1.4.13+dfsg.1-1~deb11u1 | DSA-5037-1 |
| Debian 10 | roundcube | 1.3.17+dfsg.1-1~deb10u2 | DSA-5037-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | roundcube | 1.2.3+dfsg.1-4+deb9u10 | DLA-2878-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | roundcube | 1.5.0+dfsg.1-2ubuntu0.1~esm1 | USN-5182-1 |
| Ubuntu Pro 20.04 LTS | roundcube | 1.4.3+dfsg.1-1ubuntu0.1~esm2 | USN-5182-1 |
| Ubuntu Pro 18.04 LTS | roundcube | 1.3.6+dfsg.1-1ubuntu0.1~esm2 | USN-5182-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | roundcube | 1.2~beta+dfsg.1-0ubuntu1+esm2 | USN-5182-1 |
Advisories 3
- USN-5182-1 roundcube vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DSA-5037-1 roundcube - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2878-1 roundcube - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/roundcube/roundcubemail/commit/8894fddd59b770399eed4ef8d4da5773913b5bf0
- https://roundcube.net/news/2021/12/30/update-1.5.2-released
- https://github.com/roundcube/roundcubemail/commit/b2400a4b592e3094b6c84e6000d512f99ae0eed8
- https://roundcube.net/news/2021/12/30/security-update-1.4.13-released
- https://bugs.debian.org/1003027
- DSA-5037 vendor-advisory
- [debian-lts-announce] 20220112 [SECURITY] [DLA 2878-1] roundcube security update mailing-list