Vulnerability Report

CVE-2020-15562

Title: Roundcube Webmail Cross-Site Scripting (XSS)

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2020-15562.

CWE Category CWE-79

Published Date Jul 06, 2020

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 6.1 CVSS v3.1

Exploit Probability (EPSS)

2.07%

Vulnerability Summary

CVE-2020-15562: An issue was discovered in Roundcube Webmail before 1.2.11, 1.3.x before 1.3.14, and 1.4.x before 1.4.7. It allows XSS via a crafted HTML e-mail message, as demonstrated by a JavaScript payload in the xmlns (aka XML namespace) attribute of a HEAD element when an SVG element exists.

Impacted Vendors

cobalt 1

roundcube 1

vdesk 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html https://github.com/roundcube/roundcubemail/commit/3e8832d029b035e3fcfb4c75839567a9580b4f82 https://github.com/roundcube/roundcubemail/releases/tag/1.2.11 https://github.com/roundcube/roundcubemail/releases/tag/1.3.14 https://github.com/roundcube/roundcubemail/releases/tag/1.4.7 https://www.debian.org/security/2020/dsa-4720 http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html https://github.com/roundcube/roundcubemail/commit/3e8832d029b035e3fcfb4c75839567a9580b4f82 https://github.com/roundcube/roundcubemail/releases/tag/1.2.11 https://github.com/roundcube/roundcubemail/releases/tag/1.3.14 https://github.com/roundcube/roundcubemail/releases/tag/1.4.7 https://www.debian.org/security/2020/dsa-4720

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.1

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

4.3

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-15562 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 17, 2026 MODIFIED

Vulnerability data updated via NVD.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

July 06, 2020 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


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

Affected Stack

No specific products linked.