What is CVE-2020-9995?

CVE-2020-9995 is a medium-severity vulnerability in Apple macOS, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-02.

How severe is CVE-2020-9995?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Apple macOS

CVE-2020-9995

An issue existed in the parsing of URLs. This issue was addressed with improved input validation. This issue is fixed in macOS Server 5.11. Processing a maliciously crafted URL may lead to an open redirect or cross site scripting.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Apple Macos — versions unspecified
Apple Macos_server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting
CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-9995?: CVE-2020-9995 is a medium-severity vulnerability in Apple macOS, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-02.
How severe is CVE-2020-9995?: Medium severity. CVSS v3 base score is 6.1 out of 10.