CVE-2020-7063Public exploit

Local file disclosure via discarded archive permissions

Published Feb 27, 2020 · Updated Sep 16, 2024

PHP 7.2.x before 7.2.28, 7.3.x before 7.3.15, and 7.4.x before 7.4.3 improperly preserves permissions, allowing local users to read extracted files. The phar_build iterator path assigns archive entries mode 0666 instead of copying each source file's restrictive mode. Exposure requires an application to pass protected files through PharData::buildFromIterator and a permission-enforcing system to extract the resulting archive.

CVSS severity5.5
Medium
EPSS probability1.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

PHP 7.2.x before 7.2.28, 7.3.x before 7.3.15, and 7.4.x before 7.4.3 improperly preserves permissions, allowing local users to read extracted files. The phar_build iterator path assigns archive entries mode 0666 instead of copying each source file's restrictive mode. Exposure requires an application to pass protected files through PharData::buildFromIterator and a permission-enforcing system to extract the resulting archive.

The record

CVE
CVE-2020-7063
Published
Feb 27, 2020
Updated
Sep 16, 2024
Vendor
The PHP Group
Product
PHP
Classifications
CWE-281, T1222.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.2.x <7.2.28
  2. Affected versionversion=7.3.x <7.3.15
  3. Affected versionversion=7.4.x <7.4.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The PHP Group · PHPversion=7.2.x <7.2.28; version=7.3.x <7.3.15; version=7.4.x <7.4.3

Published CVSS scores

5.5PHP GroupCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-281Improper Preservation of Permissions
T1222.002File and Directory Permissions Modification: Linux and Mac Permissions

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo