CVE-2020-15655

MEDIUM

Description

A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

References

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1645204

https://usn.ubuntu.com/4443-1/

https://www.mozilla.org/security/advisories/mfsa2020-30/

https://www.mozilla.org/security/advisories/mfsa2020-32/

https://www.mozilla.org/security/advisories/mfsa2020-33/

Details

Source: MITRE

Published: 2020-08-10

Updated: 2020-08-18

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

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

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM