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

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CVE-2020-7062

HIGH 7.5 CVSS 3.1
Published
February 27, 2020
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@php.net
Weakness
CWE-476
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.

Affected products and versions

  • PHP — From 7.2.0 (including) to 7.2.27 (including)
  • PHP — From 7.3.0 (including) to 7.3.14 (including)
  • PHP — From 7.4.0 (including) to 7.4.2 (including)

References

  • lists.opensuse.org http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html Mailing List, Third Party Advisory
  • bugs.php.net https://bugs.php.net/bug.php?id=79221 Exploit, Vendor Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html Mailing List, Third Party Advisory
  • security.gentoo.org https://security.gentoo.org/glsa/202003-57 Third Party Advisory
  • usn.ubuntu.com https://usn.ubuntu.com/4330-1/ Third Party Advisory
  • www.debian.org https://www.debian.org/security/2020/dsa-4717 Third Party Advisory
  • www.debian.org https://www.debian.org/security/2020/dsa-4719 Third Party Advisory
  • www.tenable.com https://www.tenable.com/security/tns-2021-14 Third Party Advisory
  • nvd.nist.gov Official NVD record