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Known Exploited Vulnerability
6.3
MEDIUM CVSS 3.1
CVE-2020-13965
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability - [Actively Exploited]
Description

An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.

INFO

Published Date :

June 9, 2020, 3:15 a.m.

Last Modified :

Feb. 13, 2025, 8:02 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Roundcube Webmail contains a cross-site scripting (XSS) vulnerability that allows a remote attacker to manipulate data via a malicious XML attachment.

Required Action :

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes :

https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12; https://nvd.nist.gov/vuln/detail/CVE-2020-13965

Affected Products

The following products are affected by CVE-2020-13965 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fedoraproject fedora
1 Debian debian_linux
1 Roundcube webmail
: Total Affected Vendor : 3 | Products : 3
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
This addresses a cross-site scripting vulnerability in Roundcube Webmail.
  • Update the Roundcube Webmail packages.
  • If the issue persists, refer to vendor documentation for further guidance.
Public PoC/Exploit Available at Github

CVE-2020-13965 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-13965.

URL Resource
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube Exploit Third Party Advisory
https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 Release Notes Third Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 Release Notes Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ Mailing List
https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 Vendor Advisory
https://www.debian.org/security/2020/dsa-4700 Third Party Advisory
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube Exploit Third Party Advisory
https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 Patch Third Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 Release Notes Third Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 Release Notes Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ Mailing List
https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 Vendor Advisory
https://www.debian.org/security/2020/dsa-4700 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-13965 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-13965 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
victoni/Roundcube-CVE-2024-42008-and-CVE-2024-42010-POC

POC for Roundcube vulnerabilities CVE-2024-42008 and CVE-2024-42010

css cve roundcube vulnerability xss

JavaScript

Updated: 4 months, 1 week ago
2 stars 0 fork 0 watcher
Born at : Feb. 13, 2025, 1:56 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
ChalkingCode/ExploitedDucks

A super simple Cisa KEV lookup CLI tool leveraging DuckDB

Python

Updated: 1 year ago
1 stars 0 fork 0 watcher
Born at : July 2, 2024, 7:56 p.m. This repo has been linked 33 different CVEs too.
Profile Photo
mbadanoiu/CVE-2020-13965

CVE-2020-13965: Cross-Site Scripting via Malicious XML Attachment in Roundcube Webmail

0-day cross-site-scripting cve cves unauthenticated cve-2020-13965

Updated: 1 year, 4 months ago
0 stars 0 fork 0 watcher
Born at : April 13, 2024, 3:49 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-13965 vulnerability anywhere in the article.

  • security.nl
Securitybedrijf meldt actief misbruik van XSS-lek in Roundcube Webmail

Aanvallers maken opnieuw actief misbruik van een XSS-kwetsbaarheid in Roundcube Webmail, zo meldt securitybedrijf Positive Technologies. Roudcube is opensource-webmailsoftware en wordt door allerlei o ... Read more

Published Date: Oct 21, 2024 (10 months ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2020-13965 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Feb. 13, 2025

    Action Type Old Value New Value
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube
    Added Reference https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3
    Added Reference https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5
    Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.3.12
    Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.4.5
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/
    Added Reference https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12
    Added Reference https://www.debian.org/security/2020/dsa-4700
  • Modified Analysis by [email protected]

    Aug. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jul. 03, 2024

    Action Type Old Value New Value
    Added CWE CISA-ADP CWE-80
    Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
  • Modified Analysis by [email protected]

    Jun. 27, 2024

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ Mailing List
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Due Date 2024-07-17
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    Added Vulnerability Name Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
    Added Date Added 2024-06-26
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/
  • Modified Analysis by [email protected]

    Jul. 23, 2020

    Action Type Old Value New Value
    Changed Reference Type https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube No Types Assigned https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube Exploit, Third Party Advisory
    Changed Reference Type https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 Vendor Advisory https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 Patch, Third Party Advisory
    Changed Reference Type https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 No Types Assigned https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 Release Notes, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ Mailing List, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4700 No Types Assigned https://www.debian.org/security/2020/dsa-4700 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 21, 2020

    Action Type Old Value New Value
    Added Reference https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 19, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 11, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4700 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://github.com/roundcube/roundcubemail/releases/tag/1.4.5 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 No Types Assigned https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3 Patch, Third Party Advisory
    Changed Reference Type https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 No Types Assigned https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 Vendor Advisory
    Changed Reference Type https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 No Types Assigned https://github.com/roundcube/roundcubemail/releases/tag/1.3.12 Release Notes, Third Party Advisory
    Changed Reference Type https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 No Types Assigned https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 Vendor Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.12 *cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* versions from (including) 1.4.0 up to (excluding) 1.4.5
  • CVE Modified by [email protected]

    Jun. 09, 2020

    Action Type Old Value New Value
    Changed Description An issue was discovered in Roundcube Webmail before 1.3.12. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview. An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.
    Added Reference https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5 [No Types Assigned]
    Added Reference https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

85.20 }} 0.91%

score

0.99311

percentile