High severity · published Jun 2, 2025
CVE-2025-49113
RoundCube Webmail Deserialization of Untrusted Data Vulnerability
In wildKEV
8.8
CVSS
99.7%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)99.7% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Feb 20, 2026
Federal remediation dueMar 13, 2026
Ransomware campaign useNot known
Affected products
Which versions
WE
Webmail · Roundcube
before 1.5.10; 1.6.0 before 1.6.11 · source: vendor, NVD, KEV
DL
Debian Linux · Debian
11.0 · source: NVD
In the news
AdvisoryInformational
CISA Adds Two Known Exploited Vulnerabilities to Catalog
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Vulnerability CVE-2025-68461 RoundCube Webmail Cross-site Scripting Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria . 
Feb 20, 2026·CISA Advisories
VulnerabilityHigh
[CISA KEV] CVE-2025-49113: Roundcube Webmail - RoundCube Webmail Deserialization of Untrusted Data Vulnerability
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.
Feb 20, 2026·CISA KEV