This report was translated by AI; nobody has reviewed the translation yet. Original language: Slovak.

[TLP:CLEAR] Roundcube Webmail fixes 1 critical vulnerability

Roundcube fixes 1 critical vulnerability in Roundcube Webmail in versions 1.6.11 and 1.5.10 [1]. Debian and Ubuntu have not yet released a fix for their stable releases; Red Hat products are not affected by the vulnerability [2][3]. Gentoo has the fixed version 1.6.11 available as testing [4]. A manual fix can be made by creating and applying a patch from the fixed files available at [5]. The changes can be verified in the commit available at [6].

Roundcube - RCE (CVE-2025-49113)
CVSS 9.9 (Critical)

An authenticated remote attacker can execute arbitrary PHP code on the server by sending a specially crafted file upload request [7].

The vulnerability is present in product:

  • Roundcube; >1.5.10; >=1.6, <1.6.11;

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

More information:

The vulnerability was publicly disclosed 2. 6. 2025.


By CESNET, z.s.p.o. Martin Krajči on 2. 6. 2025.

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