WordPress Core < 5.4.2 - Arbitrary User Meta Update

Authentication Bypass Using an Alternate Path or Channel
CVE CVE-2020-4050
CVSS Low (3.5)
Publicly Published June 10, 2020
Last Updated January 22, 2024
Researcher Simon Scannell
Description

In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

References

1 affected software package

Software Type Core
Software Slug wordpress (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.7
  • 3.7 - 3.7.33
  • 3.8 - 3.8.33
  • 3.9 - 3.9.31
  • 4.0 - 4.0.30
  • 4.1 - 4.1.30
  • 4.2 - 4.2.27
  • 4.3 - 4.3.23
  • 4.4 - 4.4.22
  • 4.5 - 4.5.21
  • 4.6 - 4.6.18
  • 4.7 - 4.7.17
  • 4.8 - 4.8.13
  • 4.9 - 4.9.14
  • 5.0 - 5.0.9
  • 5.1 - 5.1.5
  • 5.2 - 5.2.6
  • 5.3 - 5.3.3
Patched Version
  • 3.7.34
  • 3.8.34
  • 3.9.32
  • 4.0.31
  • 4.1.31
  • 4.2.28
  • 4.3.24
  • 4.4.23
  • 4.5.22
  • 4.6.19
  • 4.7.18
  • 4.8.14
  • 4.9.15
  • 5.0.10
  • 5.1.6
  • 5.2.7
  • 5.3.4
  • 5.4.2
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