CVE-2026-48849
Publication date 25 May 2026
Last updated 27 May 2026
Ubuntu priority
Description
In Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, an unsanitized subject field in the draft restored value could lead to stored XSS/HTML/CSS injection on shared mailboxes.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| roundcube | 26.04 LTS resolute |
Needs evaluation
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
4.4 · Medium
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N |
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-48849
- https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1
- https://github.com/roundcube/roundcubemail/commit/a21519187873ce962db029b6ff68e47bd7f3fd8a
- https://github.com/roundcube/roundcubemail/commit/189d30a4890319cd687df959ca9f768a3a613d61
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.1