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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.

PUBLISHED Reserved 2026-05-25 | Published 2026-05-25 | Updated 2026-05-26 | Assigner mitre




MEDIUM: 4.4CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status
unaffected

1.6.0 (semver) before 1.6.16
affected

1.7.0 (semver) before 1.7.1
affected

References

roundcube.net/...026/05/24/security-updates-1.6.16-and-1.7.1

github.com/roundcube/roundcubemail/releases/tag/1.7.1

github.com/...ommit/189d30a4890319cd687df959ca9f768a3a613d61

github.com/roundcube/roundcubemail/releases/tag/1.6.16

github.com/...ommit/a21519187873ce962db029b6ff68e47bd7f3fd8a

cve.org (CVE-2026-48849)

nvd.nist.gov (CVE-2026-48849)

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