CVEs / CVE-2025-49113
CVE-2025-49113: RoundCube Webmail Deserialization of Untrusted Data Vulnerability
- Known exploited in the CISA KEV catalog since 20 Feb 2026
- high 8.8 CVSS 3.1 (NVD)
- EPSS 99.4% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Roundcube Webmail | before 1.5.10 | 1.5.10 |
| Roundcube Webmail | from 1.6.0, before 1.6.11 | 1.6.11 |
| Product | Affected | Fixed in |
|---|---|---|
| roundcube/roundcubemail (Packagist) | before 1.5.10 | 1.5.10 |
| roundcube/roundcubemail (Packagist) | from 1.6.0, before 1.6.11 | 1.6.11 |
Package versions from GHSA-8j8w-wwqc-x596.
Exploitation
| In CISA KEV since | 20 Feb 2026 |
|---|---|
| Due date for US federal agencies | 13 Mar 2026 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-502 |
References
- CVE-2025-49113 on NVD
- CVE-2025-49113 in the CISA KEV catalog
- https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10 (cited by CISA)
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.10 (cited by CISA)
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.11 (cited by CISA)
- CVE-2025-49113 on OSV
- https://fearsoff.org/research/roundcube Third Party Advisory
- https://github.com/roundcube/roundcubemail/commit/0376f69e958a8fef7f6f09e352c541b4e7729c4d Patch
- https://github.com/roundcube/roundcubemail/commit/7408f31379666124a39f9cb1018f62bc5e2dc695 Patch
- https://github.com/roundcube/roundcubemail/commit/c50a07d88ca38f018a0f4a0b008e9a1deb32637e Patch
- https://github.com/roundcube/roundcubemail/pull/9865 Issue Tracking
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.10 Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.11 Release Notes
- https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10 Vendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-mitigation-script Exploit, Mitigation, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-vulnerability-detection Exploit, Mitigation, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/06/02/3 Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/06/msg00008.html Mailing List, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49113 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.