Threat Intelligence / CVE / CVE-2025-49113

CVE-2025-49113

CISA KEV

CVSS 9.9 (CRITICAL) · EPSS 91.6% · Published 2025-06-02

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 v3 vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-502

Threats tracking this CVE

RoundCube Webmail Active Exploitation — CVE-2025-49113 Deserialization RCE (CVSS 9.9) + CVE-2025-68461 XSS via SVG Animate Tag (CISA KEV) — CRITICAL

References

https://fearsoff.org/research/roundcube
https://github.com/roundcube/roundcubemail/commit/0376f69e958a8fef7f6f09e352c541b4e7729c4d
https://github.com/roundcube/roundcubemail/commit/7408f31379666124a39f9cb1018f62bc5e2dc695
https://github.com/roundcube/roundcubemail/commit/c50a07d88ca38f018a0f4a0b008e9a1deb32637e
https://github.com/roundcube/roundcubemail/pull/9865
https://github.com/roundcube/roundcubemail/releases/tag/1.5.10
https://github.com/roundcube/roundcubemail/releases/tag/1.6.11
https://roundcube.net/news/2025/06/01/security-updates-1.6.11-and-1.5.10
https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-mitigation-script
https://www.vicarius.io/vsociety/posts/cve-2025-49113-roundcube-vulnerability-detection

Full detection coverage & IOCs for threats exploiting CVE-2025-49113 are available via the Threadlinqs MCP server (Purple tier). View plans →

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