CVE-2025-49113 — RoundCube Webmail Deserialization of Untrusted Data Vulnerability
CVE-2025-49113: RoundCube Webmail Deserialization of Untrusted Data Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Roundcube |
| Product | Webmail |
| Date added | 2026-02-20 |
| Due date | 2026-03-13 |
| Ransomware campaign use | Unknown |
Description
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-49113
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog