CVE-2019-8827

Name: CVE-2019-8827
Creator: NVD / NIST
Published: 2020-10-27T20:15:20.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 1.04%

Last modified Jun 17, 2026

CVE-2019-8827 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. The HTTP referrer header may be used to leak browsing history. The issue was resolved by downgrading all third party referrers to their origin. EPSS estimates a 1.04% chance of exploitation in the next 30 days.

Description

The HTTP referrer header may be used to leak browsing history. The issue was resolved by downgrading all third party referrers to their origin. This issue is fixed in Safari 13.0.3, iTunes 12.10.2 for Windows, iCloud for Windows 10.9.2, tvOS 13.2, iOS 13.2 and iPadOS 13.2, iCloud for Windows 7.15. Visiting a maliciously crafted website may reveal the sites a user has visited.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS Probability

1.04%

59.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Icloud	< 7.15
Apple	Icloud	>= 10.0, < 10.9.2
Apple	Itunes	< 12.10.2
Apple	Safari	< 13.0.3
Apple	Ipados	< 13.2
Apple	Iphone Os	< 13.2
Apple	Tvos	< 13.2

References

https://support.apple.com/en-us/HT210721Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210723Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210725Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210726Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210728Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210947Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210721Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210723Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210725Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210726Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210728Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT210947Release Notes, Vendor Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-8827?

How severe is CVE-2019-8827?

CVE-2019-8827 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8827?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-8827?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST