CVE-2020-15973
Insufficient policy enforcement in extensions in Google Chrome prior to 86.0.4240.75 allowed an attacker who convinced a user to install a malicious extension to bypass same origin policy via a crafted Chrome Extension.
Does this matter?
Lower severity and a low EPSS score (1.03%). Track it; it rarely justifies an emergency change on its own.
Description
Insufficient policy enforcement in extensions in Google Chrome prior to 86.0.4240.75 allowed an attacker who convinced a user to install a malicious extension to bypass same origin policy via a crafted Chrome Extension.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- EPSS
- 1.03% probability · 63th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- google/chrome · fedoraproject/fedora · opensuse/backports sle · debian/debian linux
- Source
- chrome-cve-admin@google.com
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.htmlMailing List, Third Party Advisory
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1106890Permissions Required, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/24QFL4C3AZKMFVL7LVSYMU2DNE5VVUGS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4GWCWNHTTYOH6HSFUXPGPBB6J6JYZHZE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SC3U3H6AISVZB5PLZLLNF4HMQ4UFFL7M/
- https://www.debian.org/security/2021/dsa-4824Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.htmlMailing List, Third Party Advisory
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1106890Permissions Required, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/24QFL4C3AZKMFVL7LVSYMU2DNE5VVUGS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4GWCWNHTTYOH6HSFUXPGPBB6J6JYZHZE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SC3U3H6AISVZB5PLZLLNF4HMQ4UFFL7M/
- https://www.debian.org/security/2021/dsa-4824Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.