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CVE-2025-49113 — Actively Exploited: Webmail (Roundcube)

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.

CVE IDCVE-2025-49113
VendorRoundcube
ProductWebmail
Vulnerability nameRoundCube Webmail Deserialization of Untrusted Data Vulnerability
Date added2026-02-20
Remediation due2026-03-13
Known ransomware useUnknown
Required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
DescriptionRoundCube 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.
SourceCISA Known Exploited Vulnerabilities

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