CVE-2022-40958

UNKNOWN

Published 2022-12-22T00:00:00.000Z

Actions:

CVSS Score

V3.1

6.5

/10

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

Base Score Metrics

Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01

0.001

probability

of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25

Exploit Probability

Percentile: 0.441

Higher than 44.1% of all CVEs

Attack Vector Metrics

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Impact Metrics

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Description

By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.