CVE-2025-49113
Deserialization of Untrusted Data in Roundcube Webmail. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 20 February 2026.
- Product
- Roundcube Webmail
- Added to CISA's catalog
- Federal fix-by date
- Ransomware
- No known use in ransomware campaigns
- Vendor advisories
- Sources
- CISA’s catalog, NVD entry
CISA’s 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.
More from Roundcube this year.
- CVE-2025-68461 Cross-site Scripting, added
Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.