Overview
RoundCube Webmail contains a deserialization of untrusted data vulnerability that allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php.
https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10 ; https://github.com/roundcube/roundcubemail/releases/tag/1.5.10 ; https://github.com/roundcube/roundcubemail/releases/tag/1.6.11 ; https://nvd.nist.gov/vuln/detail/CVE-2025-49113
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2025-49113 |
| Vendor / Product | Roundcube — Webmail |
| NVD Published | 2025-06-02 |
| NVD Last Modified | 2026-02-23 |
| CVSS 3.1 Score | 9.9 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-502 |
| CISA KEV Added | 2026-02-20 |
| CISA KEV Deadline | 2026-03-13 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2026-03-13.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2026-02-20 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2026-03-13 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2025-49113 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |