WordPress Core < 5.3.1 - Authorization Bypass

Improper Authorization
CVE CVE-2019-20043
CVSS Medium (4.3)
Publicly Published December 1, 2019
Last Updated January 22, 2024
Researcher Daniel Bachhuber
Description

In in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php in WordPress 3.7 to 5.3.0, authenticated users who do not have the rights to publish a post are able to mark posts as sticky or unsticky via the REST API. For example, the contributor role does not have such rights, but this allowed them to bypass that. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

References

1 affected software package

Software Type Core
Software Slug wordpress (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.7
  • 3.7 - 3.7.31
  • 3.8 - 3.8.31
  • 3.9 - 3.9.29
  • 4.0 - 4.0.28
  • 4.1 - 4.1.28
  • 4.2 - 4.2.25
  • 4.3 - 4.3.21
  • 4.4 - 4.4.20
  • 4.5 - 4.5.19
  • 4.6 - 4.6.16
  • 4.7 - 4.7.15
  • 4.8 - 4.8.11
  • 4.9 - 4.9.12
  • 5.0 - 5.0.7
  • 5.1 - 5.1.3
  • 5.2 - 5.2.4
  • 5.3 - 5.3
Patched Version
  • 3.7.32
  • 3.8.32
  • 3.9.30
  • 4.0.29
  • 4.1.29
  • 4.2.26
  • 4.3.22
  • 4.4.21
  • 4.5.20
  • 4.6.17
  • 4.7.16
  • 4.8.12
  • 4.9.13
  • 5.0.8
  • 5.1.4
  • 5.2.5
  • 5.3.1
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