CVE-2025-49113
Roundcube Webmail: Deserialization of Untrusted Data
As of , CVE-2025-49113 in Roundcube Webmail is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 20 February 2026
- US federal deadline
- 13 March 202621 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- Public exploit
- 1 Metasploit module and 1 Exploit-DB entry
- Fix
- Vendor advice: github.com and roundcube.netLinks below, from CISA's entry.
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA's required action
What the flaw is
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.
CISA's 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.
The CVE record's description, from mitre
- CVE published
- 2 June 2025
- Assigned by
- mitre
- CVSS
- 9.9 Critical (CVSS 3.1, from the CNA)
- CWE-502
- Deserialization of Untrusted Data
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- Exploit-DB published an exploit (EDB-ID 52324).
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: Roundcube Post-Auth RCE via PHP Object Deserializationexploit module, rank excellent
- Exploit-DB: Roundcube 1.6.10 - Remote Code Execution (RCE)EDB-ID 52324, 13 June 2025
Webmail: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2024-42009Cross-Site Scripting | Roundcube Webmail | Patch this weekEPSS 0.83 | 0.83 | ||
| CVE-2024-37383Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.73 | 0.73 | ||
| CVE-2020-13965Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.77 | 0.77 | ||
| CVE-2023-43770Persistent Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.64 | 0.64 | ||
| CVE-2023-5631Persistent Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.76 | 0.76 | ||
| CVE-2025-68461Cross-site Scripting | Roundcube Webmail | Patch soon | 0.27 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org