VULNERABILITY INTELLIGENCE
CVE-2020-7070
CVSS score4.3 MEDIUM
EPSS probability5.03%
CISA KEVNot currently listed
Published2020-10-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Description
In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information.
Weakness classification
- security@php.net: CWE-20
- nvd@nist.gov: CWE-565
Primary references
- security@php.net — Third Party Advisory
- security@php.net — Mailing List, Third Party Advisory
- security@php.net — Mailing List, Third Party Advisory
- security@php.net — Issue Tracking, Vendor Advisory
- security@php.net — Exploit, Third Party Advisory
- security@php.net — Mailing List, Third Party Advisory
- security@php.net
- security@php.net
- security@php.net
- security@php.net — Third Party Advisory
- security@php.net — Third Party Advisory
- security@php.net — Third Party Advisory