libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
Published 2022-06-02 14:15:44
Updated 2024-03-27 15:02:07
Source HackerOne
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-27779

Probability of exploitation activity in the next 30 days: 0.08%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 33 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2022-27779

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
5.0
MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
NIST
5.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.9
1.4
NIST

CWE ids for CVE-2022-27779

References for CVE-2022-27779

Products affected by CVE-2022-27779

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