CVE-2026-48849
Published:May 25, 2026
Updated:June 11, 2026
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.
Affected Packages
https://github.com/roundcube/roundcubemail.git (GITHUB):
Affected version(s) >=v0.1-beta2 <1.6.16Fix Suggestion:
Update to version 1.6.16https://github.com/roundcube/roundcubemail.git (GITHUB):
Affected version(s) =1.7.0 <1.7.1Fix Suggestion:
Update to version 1.7.1roundcube/roundcubemail (PHP):
Affected version(s) =1.7.0 <1.7.1Fix Suggestion:
Update to version 1.7.1roundcube/roundcubemail (PHP):
Affected version(s) >=dev-release-1.7 <1.6.16Fix Suggestion:
Update to version 1.6.16Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.03