CVE-2026-48849

4.4 MEDIUM

Published: May 25, 2026 Modified: May 26, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/roundcube/roundcubemail/commit/189d30a4890319cd687df959ca9f768a3a613d61

Source: cve@mitre.org

https://github.com/roundcube/roundcubemail/commit/a21519187873ce962db029b6ff68e47bd7f3fd8a

Source: cve@mitre.org

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

Source: cve@mitre.org

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

Source: cve@mitre.org

https://roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1

Source: cve@mitre.org

5 reference(s) from NVD

Quick Stats

CVSS v3 Score

4.4 / 10.0

EPSS (Exploit Probability)

0.2%

9th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-79

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