CVE-2026-48849

Summary

CVECVE-2026-48849
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-25 20:16:37 UTC
Updated2026-05-26 19:26:42 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 4.4 MEDIUM from [email protected]

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

EPSS: 0.000320000 probability, percentile 0.098110000 (date 2026-05-29)

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


VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1CNACVSS4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Roundcube Webmail affected 1.6.0 1.6.16 semver Not specified
CNA Roundcube Webmail affected 1.7.0 1.7.1 semver Not specified

References

ReferenceSourceLinkTags
github.com/roundcube/roundcubemail/commit/189d30a4890319cd687df959ca9f76... [email protected] github.com
github.com/roundcube/roundcubemail/releases/tag/1.7.1 [email protected] github.com
github.com/roundcube/roundcubemail/releases/tag/1.6.16 [email protected] github.com
roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1 [email protected] roundcube.net
github.com/roundcube/roundcubemail/commit/a21519187873ce962db029b6ff68e4... [email protected] github.com
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