CVE-2025-49113
Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php, leading to PHP Object Deserialization.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Feb 20, 2026
- US federal agencies must remediate it by Mar 13, 2026 (BOD 22-01)
- First attack observed 2 days after disclosure
- Used in ransomware campaigns
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Source: CISA KEV · Oct 20, 2026 Sep 13, 2026 Sep 8, 2026 Sep 3, 2026 Aug 21, 2026 Aug 11, 2026
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HAffected products
| Vendors | Product | Versions |
|---|---|---|
| roundcube | webmail | < 1.5.10 |
| debian | debian linux | 11.0 |
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