What is CVE-2020-27969?

CVE-2020-27969 is a high-severity vulnerability in Yandex Browser, classified under Origin Validation Error. CVSS score: 7.3/10. Published 2021-09-13.

How severe is CVE-2020-27969?

High severity. CVSS v3 base score is 7.3 out of 10.

Is CVE-2020-27969 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Yandex Browser

CVE-2020-27969

Yandex Browser for Android 20.8.4 allows remote attackers to perform SOP bypass and addresss bar spoofing

EPSS: 0.005 (41.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Yandex Yandex_browser — versions 20.8.4
N/a Yandex Browser For Android — versions All versions prior to version 20.8.4.

Weakness classification (CWE)

CWE-346 — Origin Validation Error

Public proof-of-concept exploits

KirtiRamchandani/KirtiRamchandani

References

browser-security@yandex-team.ru (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-27969?: CVE-2020-27969 is a high-severity vulnerability in Yandex Browser, classified under Origin Validation Error. CVSS score: 7.3/10. Published 2021-09-13.
How severe is CVE-2020-27969?: High severity. CVSS v3 base score is 7.3 out of 10.
Is CVE-2020-27969 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.