Vulnerability Intelligence Report
Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability
CVE-2020-13965
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
6.3
MEDIUM
Exploitability:2.9
Impact Score:3.4
EPSS Probability:76.60%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-80 ↗CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| roundcube | webmail | all |
| debian | debian_linux | 9.0, 10.0 |
| fedoraproject | fedora | 31, 32 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2020-06-09T00:00:00 |
| Published | 2020-06-09T02:45:24 |
| Last Updated | 2025-10-21T23:35:42 |
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