CVE-2015-8793

Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6...

6.1 MediumFix available

Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6 and 1.1.x before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter in a mail task to the default URL, a different vulnerability than CVE-2011-2937.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

1.39%Up 0.3 points since Feb 4, 2022

What each source reports

NVD Score used 6.1

Record: CVE-2015-8793
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness: CWE-79
Updated: 2026-11-02

CVE List No score

Record: CVE-2015-8793
Updated: 2026-11-02

EUVDEUVD-2015-8665 No score

Record: EUVD-2015-8665
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cxwg-vcpf-j5j6 6.1

Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6...

Record: GHSA-cxwg-vcpf-j5j6
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 6.1

Record: CVE-2015-8793
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2015-8793 6.1

Record: DEBIAN-CVE-2015-8793
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2015-8793 6.1

Record: UBUNTU-CVE-2015-8793
CVSS 3.0: 6.1 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

Affected products

roundcube webmail

Affected packages

Affected packages
Package	Affected	Fixed
`roundcube` Debian:12	before 1.1.2+dfsg.1-1	1.1.2+dfsg.1-1
`roundcube` Debian:13	before 1.1.2+dfsg.1-1	1.1.2+dfsg.1-1
`roundcube` Debian:14	before 1.1.2+dfsg.1-1	1.1.2+dfsg.1-1

History

History
Recorded	Changed	Sources
Nov 3, 2026	affected
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2015-8793 is a medium vulnerability (CVSS 6.1) in Roundcube Webmail, published January 29, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.39%, the 72nd percentile. Fixed in roundcube 1.1.2+dfsg.1-1.