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PHP CVEs

Vulnerabilities in the PHP language itself, and which PHP versions they affect.

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CVE-2020-7070

MEDIUM 5.3 CVSS 3.1
Published
October 2, 2020
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@php.net
Weakness
CWE-20, CWE-565
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.

Affected products and versions

  • PHP — From 7.2.0 (including) to 7.2.34 (excluding)
  • PHP — From 7.3.0 (including) to 7.3.23 (excluding)
  • PHP — From 7.4.0 (including) to 7.4.11 (excluding)

References

  • cve.circl.lu http://cve.circl.lu/cve/CVE-2020-8184 Third Party Advisory
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00045.html Mailing List, Third Party Advisory
  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00067.html Mailing List, Third Party Advisory
  • bugs.php.net https://bugs.php.net/bug.php?id=79699 Issue Tracking, Vendor Advisory
  • hackerone.com https://hackerone.com/reports/895727 Exploit, Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2020/10/msg00008.html Mailing List, Third Party Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EVDN7D3IB4EAI4D3ZOM2OJKQ5SD7K4E/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2J3ZZDHCSX65T5QWV4AHBN7MOJXBEKG/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRU57N3OSYZPOMFWPRDNVH7EMYOTSZ66/
  • security.gentoo.org https://security.gentoo.org/glsa/202012-16 Third Party Advisory
  • security.netapp.com https://security.netapp.com/advisory/ntap-20201016-0001/ Third Party Advisory
  • usn.ubuntu.com https://usn.ubuntu.com/4583-1/ Third Party Advisory
  • www.debian.org https://www.debian.org/security/2021/dsa-4856 Third Party Advisory
  • www.oracle.com https://www.oracle.com/security-alerts/cpuoct2021.html Not Applicable, Third Party Advisory
  • www.tenable.com https://www.tenable.com/security/tns-2021-14 Third Party Advisory
  • nvd.nist.gov Official NVD record