Medium severity · published Jun 9, 2020
CVE-2020-13965
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
In wildKEV
6.1
CVSS
76.6%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)76.6% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Jun 26, 2024
Federal remediation dueJul 17, 2024
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32 · source: NVD
WE
Webmail · Roundcube
before 1.3.12; 1.4.0 before 1.4.5 · source: NVD, CISA, KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-13965
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-13965
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://github.com/roundcube/roundcubemail/releases/tag/1.4.5
x_refsource_MISC
https://github.com/roundcube/roundcubemail/releases/tag/1.3.12
x_refsource_MISC
https://github.com/roundcube/roundcubemail/commit/884eb611627ef2bd5a2e20e02009ebb1eceecdc3
x_refsource_MISC
https://github.com/roundcube/roundcubemail/compare/1.4.4...1.4.5
x_refsource_CONFIRM
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
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-111497
Out-of-Bounds Write in Google Brotli Decoder
