vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2020-13965

MEDIUM
6.1
CVSS Score
Published: June 9, 2020 at 02:45 AM UTC
Updated: June 17, 2026 at 02:54 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraWebmail

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM6.1
Exploitation
CISA KEV
Exploit prediction
EPSS 77%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score76.6%

EPSS (Exploit Prediction Scoring System) estimates a 76.6% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.
Ransomware Use
Unknown
Added to KEV
Jun 26, 2024
Remediation Due
Jul 17, 2024
836 days overdue
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

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.09.0
Fedora· Fedora Projectrpm
95%
3132
Webmail· Roundcube
95%
v < 1.3.121.4.0 ≤ v < 1.4.51.4.0
Affected range stops below 1.3.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.4.5, so it looks safe — our inference, not a vendor statement

References (10)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2020-13965-Cross%20Site-Scripting%20via%20Malicious%20XML%20Attachment-Roundcube
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3
x_refsource_MISCPatch
Source: [email protected]
https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/roundcube/roundcubemail/releases/tag/1.3.12
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/roundcube/roundcubemail/releases/tag/1.4.5
Vendor Advisoryx_refsource_FEDORAMailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DLESQ4LPJGMSWHQ4TBRTVQRDG7IXAZCW/
Vendor Advisoryx_refsource_FEDORAMailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODPJXBHZ32QSP4MYT2OBCALYXSUJ47SK/
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://roundcube.net/news/2020/06/02/security-updates-1.4.5-and-1.3.12

SSVC — Action Prioritization

SSVCActiveNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79CWE-80

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card