# CVE-2020-13965: Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability

- Exploited (CISA KEV): yes, added 2024-06-26
- Published: 2020-06-09
- CVSS: 6.3 MEDIUM (v3.1)
- EPSS: 76.6% (100th percentile)
- CWE: CWE-80

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Before feed history | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | Before feed history | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2020-13965 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2020-13965