High

PEAR core file overwrite vulnerability

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 10:22

PECL in the download utility class in the Installer in PEAR Base System v1.10.1 does not validate file types and filenames after a redirect, which allows remote HTTP servers to overwrite files via crafted responses, as demonstrated by a .htaccess overwrite.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package pear/pear <= 1.10.1 no fix

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-74
Platform
Composer
Package
pear/pear
Disclosed
13.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-xxv8-pv43-57x5 - CC BY 4.0

Vulnerability history: pear/pear

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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